Zenitsu Agatsuma

"I am— Nezuko Kamado!!" Just as Tanjiro was in a life-or-death situation, Nezuko had taken the medicine to turn back into a human and fallen into a deep sleep, heard her father, Tanjuro Kamado, calling her name. Finally, Nezuko suddenly woke up after hearing that her brother was in danger. Although Nezuko's human consciousness had not yet returned, she was still guided by her father's spirit and rushed towards where Tanjiro was. Even her master Sakonji Urokodaki, could not stop her.

Following the voice calling her, Nezuko's consciousness grew clearer and clearer. Finally, as she approached the battlefield, Nezuko recalled the happy life she had with her family, the night her family was killed and she was turned into a demon, the companions she made when she lost her human consciousness as a demon, and the moment when her brother pulled her demon self aside and said, "No matter what happens, I will protect you."

Finally, after remembering everything, Nezuko regained her human consciousness and transformed back into a human from a demon. When Nezuko finally arrived at the battlefield, dawn had already broken. Although Muzan had Muzan since turned to ashes under the sun, what Nezuko saw when she arrived was Tanjiro had stopped breathing and had no pulse.

Seeing Tanjiro lifeless, Nezuko cried sadly. But at that moment, Tanjiro, who should have been "dead," suddenly underwent a strange change. When he opened his eyes again, Tanjiro suddenly turned into a demon, and was eventually manipulated by Muzan's will to become the new Demon King, quickly overcoming the power of sunlight.

Just as Inosuke Hashibira was about to be killed by the Demonization Tanjiro, Nezuko rushed forward and tightly embraced the out-of-control Tanjiro. Despite Nezuko's desperate calls for Tanjiro to regain his senses, the completely out-of-control Tanjiro bit Nezuko and remembered the taste of her blood. Ultimately, the Demonization Tanjiro began using Blood Demon Art to attack the surrounding Demon Slayer Corps. To stop Tanjiro from killing, Nezuko ultimately chose to directly block Tanjiro's mouth, which was about to spew out the magic, with her hand, sustaining serious injuries in the process.

Say goodbye

Just then, Kanao Tsuyuri suddenly rushed forward and sacrificed herself to inject the medicine left behind by Shinobu Kocho, which allowed him to return to human form, into Tanjiro's body. Finally, with the help of Nezuko and the others, Tanjiro regained his human self and broke free from the control of Muzan's cells, returning to human form.

A month after the final battle, Tanjiro, now human again, was taken back to the Demon Slayer Corps for treatment. Because Tanjiro kept apologizing for his actions as a demon, Nezuko said it was alright and that if Tanjiro continued apologizing, she would flick his forehead. Nezuko then learned from Tanjiro that because of his transformation from demon to human, he possessed antibodies that granted him immunity to Muzan's cells. This was why Tanjiro, after absorbing her blood, was able to successfully transform back into a human with the help of medication.

After the Demon Slayer Corps disbanded, Nezuko encountered Sanemi Shinazugawa in the corridor and asked if his injuries were serious. Sanemi Shinazugawa replied that he was Sanemi Shinazugawa and apologized for not being able to come to help due to his unconsciousness and for stabbing Nezuko. In the end, Nezuko smiled and said that she had also slept for a long time and liked to sleep. Seeing the image of his younger brother in Nezuko, Sanemi Shinazugawa gently patted Nezuko's head and smiled as he said goodbye.

Confession

Afterwards Nezuko and her brother visited their Sakonji Urokodaki and Giyu Tomioka, and together with Zenitsu and Inosuke Hashibira, they went to pay respects at the graves of their fallen comrades in the Demon Slayer Corps. Nezuko and her brother then took Zenitsu and Inosuke Hashibira back to their hometown. After visiting the graves of their deceased family members, Nezuko, her brother Zenitsu, and Inosuke Hashibira began living together.

Although Kiriya Ubuyashiki sent a lot of money to ensure the Kamado siblings' livelihood, the two decided to continue working as charcoal burners. Despite the town beginning to popularize gas, the Kamado family's charcoal was of high quality and still attracted many customers. During this time, Nezuko also received Ohagi and matcha from Sanemi Shinazugawa, and Nezuko often went to Kanao Tsuyuri to learn cooking.

One day, Zenitsu suddenly called Nezuko out for a walk to clear her head. Then, in the forest, Zenitsu confessed his feelings to Nezuko very loudly. Not only could Tanjiro and Inosuke Hashibira outside the forest hear it clearly, but Nezuko, caught off guard, also experienced hearing loss before going to sleep that night...

Years later, Nezuko and Zenitsu got married.

A new era

Time flies, and in the blink of an eye, we arrive in the modern era. In this modern era, we find Nezuko and Zenitsu's great-grandchildren, Zensho Agatsuma and Toko Agatsuma, a brother and sister.

Zenitsu was abandoned by his parents at birth and lived alone in the city for fifteen years. When he was fifteen, the girl Zenitsu loved swindled him out of a lot of money in order to elope with another man, leaving Zenitsu with a huge debt. At this time, Jigoro Kuwajima, the former Jigoro Kuwajima of the Demon Slayer Corps, appeared, recognized Zenitsu's talent at a glance, paid off Zenitsu's debts, took him to Mount Momoyama, and then took him as his apprentice. He was a contemporary of Tanjiro Kamado, Inosuke Hashibira, Kanao Tsuyuri, and Genya Shinazugawa as a Demon Slayer Corps swordsman.

A boy with round eyebrows and short, golden hair, wearing a yellow haori with a triangular pattern on his uniform. Zenitsu's hair was originally black, but during a training session with his "grandfather," he was afraid of his "grandfather's" hellish training and climbed a tree to avoid it. As a result, he was struck by lightning, and his black hair turned yellow.

He is extremely timid and cowardly, constantly believing he is about to die. Therefore, to avoid dying alone, he frequently pesters girls, demanding they marry him. Kind-hearted, he will stand up for his friends and girls, falling in love at first sight with Nezuko Kamado. He is quite infatuated with girls, but his excessive pestering often makes him disliked, even by Nezuko, who is a demon. Although he usually cowardly and selfishly demands protection from those around him, he will step forward in times of crisis, actively protecting children and his friends' important possessions; he is a gentle person.

He has absolutely no confidence in his abilities as a swordsman and is afraid of and avoids fighting demons. In reality, he is quite talented. When he is under extreme tension, he will fall into a semi- Awakening state and unleash his full power. After learning that his "grandfather" committed seppuku to atone for his senior brother Kaigaku's transformation into a demon, Zenitsu had a Zenitsu and, through rigorous training, was able to unleash his full power even when he was awake.

Born in Ushigome Ward, Tokyo Prefecture, his hobbies include playing karuta and sugoroku. He enjoys sweets and expensive foods (such as eel). He's quite interested in girls, and whenever he sees a young and beautiful woman, he'll pester her to marry him, often incurring their dislike. He participated in the final battle and survived to the end, after which he moved in with Tanjiro, Nezuko, and others, eventually marrying Nezuko.

The Demon Slayer Corps' signature swords are forged from "Scarlet Crimson Ore" that absorbs sunlight, and their color changes depending on their owner. Zenitsu's Nichirin Sword has a white scabbard, hilt, and jaw, while the blade is golden yellow with Inazuma bolt patterns, a testament to his mastery of Thunder Breathing.

He has extraordinary hearing, the absolute sense of pitch among absolute senses, and was once disliked by others because of his hearing. He can hear even the sound of breathing, heartbeat, and blood flow. If you listen carefully, you can even see into people's inner thoughts and distinguish between humans and ghosts.[12]

Breathe

Thunder Breathing is one of the five basic breathing techniques derived from the initial breathing technique, Sun Breathing. Zenitsu's "grandfather," Jigoro Kuwajima, was a former Sound Hashira of the Demon Slayer Corps, and Zenitsu became his apprentice, learning Thunder Breathing. Thunder Breathing has six sword forms, but Zenitsu can only use one of them. Despite only being able to use one form, Zenitsu surpassed his limits through his own efforts, honing it to the pinnacle. He also created his own style, unleashing Thunder Breathing that is uniquely his own.

Thunder Breathing - First Form: Thunderclap and Flash. Power is concentrated in one leg, then bursts forth in one breath, like Thunder tearing through the air. Approaching the opponent at high speed, a lightning-fast draw slash is performed, so fast that even the demon cannot see it, and a single strike can sever the demon's head.

Thunder Breathing - First Form: Thunderclap and Flash - Sixfold Combo. An enhanced version of Thunderclap and Flash, it uses the surrounding terrain to change the direction of the dash multiple times. It was created to compensate for the weakness of Thunderclap and Flash, which becomes almost powerless once its nature and trajectory are predicted.

When the attack is launched, thunderous sounds will be heard around, as if lightning has struck nearby.

Thunderclap and Flash · Sixfold Thunder Breathing · First Form is an enhanced version of Thunderclap and Flash · Eight-Strike Thunderclap and Flash · Sixfold, which uses the surrounding terrain to change the direction of the charge multiple times.

When the attack is launched, thunderous sounds will be heard around, as if lightning has struck nearby.

Thunderclap and Flash - Eight-Strike Thunder Breathing - First Form Thunderclap and Flash - Divine Speed: The ultimate Thunderclap and Flash, the fastest flash.

It greatly increases speed and the power of the strike, but consumes a great deal of energy. Also, because it puts a lot of strain on the legs, it can only be used twice consecutively.

Thunderclap and Flash - Swift Speed

Thunder Breathing: Seventh Form, Honoikazuchi no Kami Zenitsu's own unique sword form, which combines unique techniques from other sword forms.

It strikes with a speed imperceptible to the Ghost Eye, its trajectory resembling a dancing Thunder Dragon, its power enough to decapitate an Upper Moon demon in a single blow.

He once used this move to behead his senior brother Kaigaku, who had become an Upper Moon demon.

He later used it in his battle against Muzan.

Zenitsu, an orphan abandoned by his parents at birth, lived alone in the city for fifteen years. At fifteen, the girl Zenitsu loved swindled Zenitsu out of a large sum of money to elope with another man, leaving Zenitsu heavily in debt. At this time, Jigoro Kuwajima, the former Sound Hashira of the Demon Slayer Corps, appeared, immediately recognizing Zenitsu's talent. He paid off Zenitsu's debts and took him to Mount Momoyama, subsequently accepting him as his apprentice. Afterwards, despite being subjected to hellish training by his master, Zenitsu never disliked him. Due to the lack of love in his childhood, Zenitsu always called his master "Grandpa" and regarded his senior apprentice Kaigaku as an older brother. Zenitsu completed his training and participated in the Final Selection in just one year.

On one occasion, Zenitsu escaped from his "grandfather's" strict training by climbing a tree. He expressed that although he liked his "grandfather" very much, he still felt that he was not qualified and would definitely let his "grandfather" down. Just then, Thunder Lightning Flash and thunder roared in the sky, and Zenitsu was struck by a bolt of lightning, tree and all. As a result, Zenitsu's original black hair turned into blond hair due to the lightning strike.

After training, Zenitsu only mastered the first form of Thunder Breathing: Thunderclap and Flash. His senior brother Kaigaku, who had mastered all the other sword forms but could never learn the first form, disliked Zenitsu and mocked him harshly, believing that their master was wasting Zenitsu's time training him.

During training, Zenitsu repeatedly tried to escape, but his master relentlessly caught him each time. In the end, Zenitsu completed the training and went to participate in the Final Selection.

Am I the only one who failed the Demon Slayer Corps selection? In the Final Selection at Mount Fujikasane, Zenitsu successfully survived seven days in the mountains with Tanjiro Kamado, Inosuke Hashibira, Kanao Tsuyuri, and Genya Shinazugawa, and finally passed the Final Selection to become a formal member of the Demon Slayer Corps.

However, when the Kasugai Crow were distributed, for some reason only Zenitsu received a sparrow named Ukogi. Since Ukogi, being a sparrow, couldn't speak like Kasugai Crow, Zenitsu couldn't understand what it was trying to say at all, and even renamed it Chuntaro.

Having received a mission to exterminate the demons of the Drum Mansion, Zenitsu, believing he would definitely be killed by a demon during the mission, began to hunch over by the roadside to escape reality. Later, a girl passing by saw him hunched over and approached him to show concern, leading Zenitsu to mistakenly believe she was concerned for him because she liked him. Ultimately, fearing he might die soon, Zenitsu insisted on marrying her.

Then, because Chuntaro ran to Tanjiro, who happened to be on a mission, to complain Zenitsu was pulled away by Tanjiro for harassing a girl. Immediately afterwards, Zenitsu was greatly Zenitsu that Tanjiro didn't remember him. But before he could even feel sad, he was beaten up by the girl, who then left angrily after revealing that she was already engaged.

Because Tanjiro disrupted his marriage proposal and gave him a look that seemed unbearable to look at, Tanjiro, after a moment of unreasonable Zenitsu, demanded that Tanjiro protect him before his wedding. Then, Tanjiro mentioned that Chuntaro flew in complaining that "Zenitsu never wants to work, always bothers girls, and his snoring is so loud it's unbearable." Although Zenitsu didn't believe Tanjiro could understand bird language, he was immediately startled by the voice of Matsuemon Tennoji (Tanjiro's Kasugai Crow). During this time, although Zenitsu sensed a demon in the box Tanjiro was carrying, Tanjiro's voice sounded very gentle and didn't seem like a bad person, so Zenitsu decided to ask Tanjiro the truth himself after completing his mission.

Upon arriving at the Drum Mansion, Zenitsu and Tanjiro encountered Shoichi and Teruko, who had followed a Shoichi of blood to the Drum Mansion. As Tanjiro ran to comfort the two children, Zenitsu suddenly heard a drum-like sound, followed by a man covered in blood being thrown outside and dying. Tanjiro then demanded that Zenitsu enter the Drum Mansion with him, but Zenitsu was very reluctant, fearing for his Tanjiro Zenitsu him inside.

However, the box Tanjiro left outside made a noise, and the two children who were left outside were frightened and followed him inside. Just as Zenitsu was beginning to worry that he would definitely die after learning that Tanjiro's injuries had not healed and began to escape reality, the sound of drumming came from somewhere.

The surrounding scenery then changed, and Zenitsu discovered that Tanjiro and Teruko, whom he had accidentally bumped into the room with his butt, were gone. Fearing that he would die next, Zenitsu tried to pull Shoichi, but was scolded by the young Shoichi and deeply hurt.

Just as Zenitsu was dragging Shoichi away from the house, he discovered that the original entrance hall had turned into another room. Zenitsu then began searching for the front door. Upon opening one door, he saw a man wearing a boar's head mask. Zenitsu immediately mistook him for a monster and cowered in fear. After the man left, Zenitsu was Shoichi 'Zenitsu "that look," but then realized that the monster was actually one of the successful candidates in the Mount Fujikasane trials.

Then, because Zenitsu made a huge fuss, he attracted an outsider demon who broke into the Drum Mansion. After running away for a while, Zenitsu gradually became too scared to run away and begged Shoichi to leave him behind and continue running. Because he felt that Shoichi was very scared but had no intention of giving up on him, Zenitsu made up his mind that "even if I am weak, I must protect Shoichi." But then Zenitsu lost consciousness due to the simultaneous collapse of fear and sense of responsibility and fell to the ground and fell into a deep sleep.

Just as the demon attempted to kill Zenitsu, the sleeping Zenitsu, roused by Shoichi's call, entered a semi- Awakening state. In an instant, with a speed imperceptible to the naked eye, he severed the demon's tongue, and then immediately followed up with "First Form: Thunderclap and Flash," severing the demon's neck in one strike. Although Zenitsu regained consciousness after beheading the demon, he had no recollection of what he had done. In the end, Zenitsu mistakenly believed that Shoichi had defeated the demon and that Shoichi was actually very strong.

Afterwards, Zenitsu and Shoichi successfully returned to the mansion by accident, but encountered Inosuke Hashibira again. Inosuke Hashibira then tried to kill Nezuko because he noticed her in the box. Because Tanjiro had said that the Nezuko containing Nezuko was important, Zenitsu protected the box from Inosuke Hashibira and was beaten black and blue until Tanjiro arrived and stopped Inosuke Hashibira.[16] After Tanjiro punished Inosuke Hashibira with Headbutt, Tanjiro changed his opinion of Zenitsu because of his Zenitsu act of protecting the box. When Inosuke Hashibira's head was knocked off by Tanjiro's Headbutt and his true face was revealed, Zenitsu complained that Inosuke Hashibira was "all muscle but looks as pretty as a girl, it's disgusting".

After burying the victims of the Drum Mansion, Tanjiro was about to separate from Kiyoshi, Shoichi, and Teruko when Zenitsu, mistakenly believing that Shoichi was strong enough to protect him, clung to him Shoichi. In the end, Tanjiro knocked him unconscious and took him down the mountain to the Wisteria House.

When heading to Mount Natagumo for a mission, Zenitsu, out of cowardice, stayed at the foot of the mountain and entered. [19]

After Tanjiro and Inosuke Hashibira had been in the mountains for a while, they quickly found a way to back down and justify their presence. However, they encountered the "older brother" of the spider demon family and were bitten by a poisonous spider created by the spider's Blood Demon Art. Terrified, Zenitsu climbed a tree, recalling his training with his master, but then fainted as his body began to transform into a spider. Zenitsu then entered a semi -Awakening state again and repeatedly used Thunderclap and Flash on the spider brother, but he was unable to successfully behead him because the spider had seen through his limited repertoire of moves.

Then, Zenitsu recalled his grandfather's teachings—"Even if you only know one move, as long as you hone it to perfection, you can become a sharper blade than anyone else." At the same time, Zenitsu also remembered that although he had a dream of protecting others, he would be abandoned by them if he failed, but only his grandfather had never given up on him. Immediately, Zenitsu used Thunderclap and Flash Sixfold to block his opponent's escape route and finally beheaded him.

Zenitsu then landed on the house suspended in the air, where his spider brother was perched. Upon waking, Zenitsu told his "grandfather" in the distance that he had a dream in which he had lived up to his "grandfather's" guidance and become stronger than anyone else, able to protect everyone's happiness. Afterwards, the poisoned and unconscious Zenitsu was rescued by the Insect Hashira, Shinobu Kocho. After being bandaged up like a mummy by the arriving members of the "Hidden" Division, Mummy Zenitsu, along with the other poisoned individuals, was taken back to the Demon Slayer Corps Headquarters for treatment.

The Hashira Trial were being treated at the Butterfly Mansion along with Tanjiro and Inosuke Hashibira. Because the medicine for treating spider-like transformation was very bitter, he kept making a scene and was often scolded by Aoi Kanzaki.

Soon after, Zenitsu, having gradually recovered and joined physical rehabilitation training, mistakenly believed that Tanjiro and Inosuke Hashibira were feigning pain during training despite having opportunities to be close to the girls. He dragged them outside and berated them. Subsequently, Zenitsu became unusually enthusiastic during training due to the chance to be close to the girls, but was beaten up by Himawari for being too "enthusiastic" during hide-and-seek training. Afterwards, Zenitsu repeatedly lost to Kanao Tsuyuri and refused to participate in training anymore, frequently sneaking into the Butterfly Mansion's kitchen to steal sweets.

However, after Tanjiro completed his training, Zenitsu, encouraged by Shinobu, quickly completed the "Total Concentration - Normal Concentration" training with Inosuke Hashibira.

Along with Tanjiro Inosuke Hashibira, Zenitsu boarded the Mugen Train Mugen Train with the Flame Hashira, Kyojuro Rengoku. Before boarding, Zenitsu was puzzled by the two's ignorant behavior, as they had never seen a train before. He also pointed out to them that the Demon Slayer Corps was not a government-recognized organization, so they could not carry swords around.

After boarding the train, Zenitsu became suspicious of Kyojuro Rengoku, who had eaten 11 beef hot pot bento boxes, wondering if he was a Pillar. Later, after hearing Kyojuro Rengoku say that a large number of passengers had gone missing on the train, and that the advance team sent to provide support had all lost contact, and that there might be demons on the train, Zenitsu immediately demanded to get off. However, Zenitsu and his companions were quickly trapped in a dream world by Lower Moon One, Enmu's Blood Demon Art.

In his dream, Zenitsu saw himself running happily in a peach grove with Nezuko, who could talk, and carrying Nezuko across a river on his back, even though she couldn't swim.