Chapter Summaries

Uchiha Mu’s system activated on the night the Uchiha Clan massacre was set to begin, giving him quests and a beginner’s gift. He considered how to use an idol card on Uchiha Izumi as Uchiha Itachi walked home.

• Uchiha Mu’s Super Option System bonded with him and offered quests to marry and have children or collect chakra from all nine Tailed Beasts.
• Uchiha Mu chose both quests, and the system announced that the Uchiha Clan Massacre would begin in three hours.
• Uchiha Mu recalled the signs of the impending massacre and received a choice to rescue clan members or join the killing.
• Uchiha Mu opened his beginner’s gift and found a Kage-Level Replication Card and an Ultimate Idol Card.
• Uchiha Mu saw Uchiha Itachi walking home with Uchiha Izumi and considered using the idol card to transfer Izumi’s love to himself.

Uchiha Mu used an All-Attribute Chakra Seed to awaken a Three-Tomoe Sharingan and gained strength before the Uchiha massacre. He rescued Izumi from Obito and used a Kage-Level Replication Card to copy Obito’s abilities, leaving the two facing off with matching Kamui shuriken.

• Uchiha Mu swallowed the All-Attribute Chakra Seed, which strengthened his chakra and awakened his Three-Tomoe Sharingan.
• Uchiha Mu found Izumi’s family dead and hurried to the Police Station, where Obito was about to kill her.
• Uchiha Mu blocked Obito’s kunai and used the Kage-Level Replication Card to copy Obito’s Kamui and other abilities.
• Uchiha Mu briefly used Kamui to evade Obito’s flames, then put Izumi behind him and confronted Obito.
• Uchiha Mu created a giant Kamui shuriken that collided with Obito’s, making both vanish and startling Obito.

Uchiha Mu fought Obito and forced him to retreat before returning to the Uchiha compound, where Itachi was about to kill Fugaku and Mikoto. Mu stopped Itachi, but Fugaku gave Mu his Mangekyō Sharingan and told him not to interfere.

• Mu used copied Kamui abilities and Five Elements Adamantine Sealing Chains against Obito, who broke free and attacked with Wood Release: Hell's Chaos.
• Obito withdrew when Kage Level fighters approached, and Mu hid the unconscious Izumi before heading back to the clan compound.
• Root shinobi reported that two Kage Level fighters had clashed, while the Third Hokage ordered his forces to kill anyone obstructing Itachi's mission.
• Itachi entered Fugaku and Mikoto's bedroom with his Ninja Blade drawn, but Mu knocked the blade aside with a kunai.
• Fugaku gouged out his own eyes and gave them to Mu, who received the Mangekyō Sharingan as an S-rank item.

Uchiha Mu awakened the Eternal Mangekyō Sharingan during the massacre of the Uchiha clan and fought Itachi before escaping with his parents’ bodies. He rescued Izumi and used a Love Transfer Card on her, then learned how marriage could complete his system task.

• After seeing Fugaku and Mikoto dead, Mu awakened his Mangekyō Sharingan and fused the eyes into an Eternal Mangekyō with time and space abilities.
• Sasuke returned home, witnessed the massacre, and awakened a One-Tomoe Sharingan after Itachi used Tsukuyomi on him.
• Mu resisted Itachi’s Tsukuyomi, fought him hand to hand, warned him about his eyes, and left with Fugaku and Mikoto’s bodies.
• Mu found Izumi, gave her a Love Transfer Card, and comforted her as she embraced him.
• The system explained that Mu and a woman who loved him could marry by agreeing to wear Wedding Matchmaking Rings, and Mu considered his rewards and future strength.

Uchiha Mu proposed to Izumi, and her acceptance awakened his Mangekyō Sharingan abilities and raised him to the initial Shadow level. As the Uchiha massacre’s news spread and the great villages prepared to attack Konoha, Mu planned to exploit the invasion to obtain the Scroll of Sealing and gain influence.

• Izumi accepted Mu’s proposal, and their exchange awakened his new abilities and increased his power to the initial Shadow level.
• Mu planned to spread news of the Uchiha Clan’s destruction, steal the Scroll of Sealing during an invasion, and then save Konoha; the system offered him two missions that he decided to pursue both.
• The Sand Ninja Village’s elders and Onoki of the Two Scales prepared to join the Cloud Ninja Village in attacking Konoha.
• Shimura Danzo welcomed the Uchiha Clan’s destruction, while Itachi left Konoha after accepting that he would be branded a traitor.
• Uchiha Sasuke awakened with a resolve to kill Itachi, and Izumi fainted repeatedly after learning that Itachi had destroyed the Uchiha Clan.

Uchiha Mu scouted the Third Hokage’s residence, then used a deceptive warning and his space-warping ability to expose an approaching alliance of enemy villages. As the Third Hokage led Konoha’s forces out to intercept them, Mu returned to the empty residence to search for scrolls.

• Mu saw Izumi recovering from her grief, then slipped into the Third Hokage’s residence with Scar of Space and found its shelves protected by barriers.
• Mu left a note on a kunai to draw the Third Hokage’s attention, followed the Hokage’s guard, and discovered Raikage A, Ōnoki, Killer B, Mabui, and Karatachi Yagura gathered with their forces to attack Konoha.
• After the enemy leaders agreed to attack early, Mu intercepted their scouts and used his space ability to carry one unconscious scout away, delaying the enemy’s advance and alerting Konoha.
• The Third Hokage learned that the enemy forces were nearing the village and led Konoha’s major clans out to stop them.
• Mu sensed the Third Hokage had left and reappeared in his residence to search through the scrolls.

Mu found the Scroll of Sealing and discovered six forbidden techniques before heading to the battlefield, where the Water Shadow attacked the Hidden Leaf Village and Mu saved Mabui from an explosive-tag ambush. He left Mabui alive beside the blast site, where her companions had been killed, and she asked who he was.

• Mu found the Scroll of Sealing in a hidden compartment and read about six forbidden techniques, including the Multiple Shadow Clone Technique, Impure World Reincarnation, and Flying Thunder God Technique.
• Mu left the Hokage's study and headed toward the battlefield as Sarutobi Hiruzen fought the Lightning Shadow and Earth Shadow.
• Ino–Shika–Chō and the Hyuga clan head forced Yagura Karatachi to release the Three-Tails, after which Yagura overwhelmed them and charged toward the Hidden Leaf Village.
• Sarutobi Hiruzen tried to pursue Yagura, but the Earth Shadow's Dust Release trapped him, and an unseen attacker wounded him with an explosive-tag kunai.
• Mu teleported Mabui away from an explosive-tag ambush, but her companions died in the blasts, and she demanded to know who Mu was.

Uchiha Mu saved Mabui, then interfered in the battle outside Konoha and drained the Three-Tails' chakra. As the Lightning Shadow and Killer Bee attacked him, Mu prepared to counter them while his chakra collection approached completion.

• Uchiha Mu introduced himself to Mabui, gave her a talisman that could save her from a fatal threat, and vanished.
• The Water Shadow attacked Konoha with the Three-Tails while the Third Hokage and the other village leaders faced the Lightning Shadow, the Earth Shadow, and Killer Bee.
• Mu ambushed the Lightning Shadow, the Earth Shadow, and Killer Bee with explosive-tag kunai, prompting the battle to intensify.
• The Water Shadow fully transformed into the Three-Tails and began charging a Tailed Beast Bomb, but Mu pressed down on its head and started draining its chakra.
• The Earth Shadow and Killer Bee joined the Lightning Shadow in attacking Mu, but his Domain of Time slowed their advance before they launched their attacks at him.

Uchiha Mu absorbed most of the Three-Tails’ chakra, transformed into the beast, and destroyed Konoha’s barrier with a Tailed Beast Ball before disappearing. Five kilometers from the village, Obito ambushed him but failed to stop his escape and recognized that Mu wielded both temporal and spatial powers.

• Mu completed his chakra-absorption mission, gained the Tailed Beast Clone and Tail Beast Transformation abilities, and attacked the Lightning Shadow and Killer B with Phoenix Sage Fire.
• Mu transformed into the Three-Tails and fired a Tailed Beast Ball at Konoha, shattering the village’s barrier and splitting the land in two.
• The allied forces withdrew from Konoha, and Mu vanished after the village’s shinobi watched him return to human form.
• Five kilometers from Konoha, Obito appeared behind Mu and attacked with Wood Style: Hell's Chaos and Fire Style: Blast Wave Wild Dance.
• Mu slowed Obito’s attacks with his temporal power, damaged the surrounding space to block Kamui, and escaped while Obito resolved to pursue him later.

Mu planned to build the Sky organization and learned three forbidden techniques from the Scroll of Sealing. Three years later, he used a Rank Advancement Card to raise Izumi to Kage level and awaken her Susanoo as she prepared to lead the organization’s children abroad.

• Mu discussed finding the Zero-Tails in Sky Ninja Village and building a force with Izumi.
• The system offered missions for joining or creating a ninja organization, and Mu chose to pursue both.
• Mu learned the Multiple Shadow Clone Technique, Mutual Multiplication Explosive Tags, and Flying Thunder God Technique.
• Three years later, Izumi had become an elite jonin and was training with Mu while the nine children they had adopted became genin.
• Mu asked Izumi to take the children abroad, recruit talented youngsters, and bring the Sky organization to the attention of the major ninja villages.
• Izumi used Mu’s Rank Advancement Card, broke through to Kage level, and awakened her initial Susanoo.

After parting from Izumi, Mu went to the Third Hokage and asked to join Konoha’s ANBU, claiming he wanted to help strengthen the village. The Third Hokage recognized Mu as the Uchiha survivor who had secretly warned Konoha of an earlier attack, but remained wary as he considered keeping the powerful young man close.

• Mu reassured Izumi about the dangers of her Mangekyō Sharingan and promised to find a way to remove its drawbacks.
• After spending the night together, Mu and Izumi parted in the rain, and Mu entrusted her with the dozen or so children.
• Mu decided to join the ANBU and establish a ninja organization, then appeared in the Hokage’s office.
• Mu revealed that he was Itachi’s younger brother and claimed he had hidden his abilities because the Uchiha clan had ignored him.
• Mu asked to join Konoha and the ANBU, citing his past warning about an attack; the Third Hokage recognized his contribution but questioned his motives.

Uchiha Mu passed the ANBU assessment with ease and was assigned the codename Shadow, reporting directly to the Third Hokage. When the Scroll of Sealing was stolen, Mu rushed to Naruto’s location and shielded him from Mizuki’s attack, then asked Naruto to hand over the scroll.

• The Third Hokage tested Mu against three ANBU, and Mu subdued all of them within seconds.
• The Third Hokage accepted Mu into ANBU as Shadow, and Mu received a system reward for joining the organization.
• An ANBU member reported that the Scroll of Sealing had been stolen, and Mu left to retrieve it.
• Naruto ran through the woods with the scroll until Mizuki confronted him and revealed he wanted to offer it to Orochimaru.
• Mu blocked Mizuki’s fireball with his Domain of Time and asked Naruto to give him the Scroll of Sealing.

Uchiha Mu stopped Mizuki from escaping with the Scroll of Sealing, then used the system to teach Naruto a forbidden technique. After receiving a mission reward, Mu sensed that Obito was nearby.

• Naruto handed the Scroll of Sealing to Mu, who defeated and restrained Mizuki.
• Mu contacted the Third Hokage and advised Naruto to earn strength through training.
• The system identified Naruto as the child of destiny, and Mu taught him a forbidden technique.
• The Third Hokage arrived with ANBU, recovered the scroll, and thanked Mu.
• Mu received 20 skill points for completing the system mission and sensed Obito nearby.

Uchiha Mu unlocked Eight Gates initiation, then received intelligence that Orochimaru planned to attack Konoha during the Genin Exam. The Third Hokage assigned Mu to infiltrate the exam under the identity “Shadow” and stop the plot.

• Mu marked Obito’s fleeing real body with chakra, then returned to Konoha after Obito’s clone vanished.
• Mu spent 20 skill points to unlock Eight Gates initiation, gaining improved physical attributes and learning how to open the first three Gates.
• The Third Hokage summoned Mu and showed him intelligence that Orochimaru would infiltrate Konoha with Sunagakure and the Hidden Sound Village during the Genin Exam.
• The Third Hokage ordered Mu to attend the exam as “Shadow,” monitor Orochimaru and his allies, and intervene if they launched their plot.
• Mu accepted the mission and said he would attend the exam and keep an eye on Naruto, Sasuke, and Sakura.

Mu tested the power of the Eight Gates at Konoha’s training grounds, then encouraged Naruto as the genin exam approached. After Mu left, Root watched him, while Orochimaru prepared with the Sound Ninja Five at a hidden stronghold.

• Mu went to the training grounds and opened the Gate of Opening, drawing the attention of the gathered ninja and the Third Hokage.
• Mu shattered a massive boulder with one kick and judged that opening the Third Gate could raise his physical strength to mid-Kage level.
• Naruto told Mu he had learned the Shadow Clone Jutsu, and Mu urged him to train for the genin exam without revealing that he had taught him a forbidden technique.
• Mu explained that he would supervise and protect the genin exam, while Naruto vowed to pass and become Hokage.
• Mu left the training grounds as Root operatives watched him, while Orochimaru sat with the Sound Ninja Five at a hidden stronghold outside Konoha.

Mu watched the Chunin Exams undercover as an ANBU member and followed several Sound Ninja who left to sabotage the venue’s defenses. He confronted them in the forest, while the written test began without him.

• Orochimaru ordered the Sound Ninja Five to watch Uchiha Mu and prioritize their mission during the Chunin Exams.
• Mu observed the gathered contestants, including Gaara, Temari, and the Sound Ninja Five, and decided to pursue another tailed beast mission and recruit Temari.
• Naruto, Sasuke, and Sakura arrived, and Naruto stopped himself from greeting Mu after Mu warned him with a look.
• Morino Ibiki announced the exam stages and sent the genin into the written test while Mu remained outside to watch for Orochimaru’s plans.
• Several Sound Ninja left for the forest to sabotage the venue’s defensive system, and Mu followed them.
• Mu confronted the Sound Ninja from behind a tree, revealing himself as an ANBU member.

Mu defeated the Sound Ninja sent to sabotage the exam site’s defenses and confronted Dosu, who attacked him on Orochimaru’s behalf. Mu overwhelmed Dosu and sealed his chakra, leaving him unable to move.

• Mu evaded the Sound Ninja’s attacks and killed them after they activated their Curse Marks.
• Mu revealed that he knew Orochimaru had sent the Sound Ninja to sabotage the exam site’s defenses.
• Mu used Domain of Time and Flying Thunder God Technique to subdue the Sound Ninja who attacked him.
• Dosu emerged and attacked Mu with Sound Release: Resonating Pierce.
• Mu slowed Dosu’s soundwave, struck him with Scar of Space, and sealed his chakra, leaving him trapped against a broken tree.

Mu captured and killed Dosu, then watched the Sound Ninja panic during the Chunin Exams and heard them plan to abduct a Konoha genin in the elimination matches. As Mu prepared to stop them and grow stronger, Orochimaru learned that Dosu and several Sound Ninja had vanished and angrily blamed his subordinates.

• Dosu tried to detonate his chakra, but Mu restrained him, drained his chakra, and killed him.
• Mu observed the genin during the written test as the remaining Sound Ninja worried about Dosu and feared the mysterious Anbu.
• Anbu brought unconscious Sound Ninja into the examination hall, and the Four Sound Ninja realized their companions had been captured.
• Ibiki announced that Naruto, Sasuke, Sakura, the Sand siblings, and the Four Sound Ninja had passed and would compete in the elimination matches the next day.
• The Four Sound Ninja decided to join forces and abduct a Konoha genin, while Mu resolved to protect his younger brother and stop Orochimaru's plan.
• At his hidden base, Orochimaru discovered that Dosu and several Sound Ninja had disappeared and angrily condemned them.

Orochimaru ordered Kabuto to monitor Uchiha Mu during the elimination matches, while Danzo plotted to steal the eyes of Mu and Sasuke. The matches began with Kankuro defeating Zaku, and after Naruto, Sasuke, and Sakura advanced, Gaara and Rock Lee faced off as Mu watched from the rooftop.

• Kabuto told Orochimaru that Mu had awakened the Space-Time Twin Eyes and reached Kage level, and Orochimaru ordered him to investigate Mu while the Sound Ninja pushed their plan forward.
• Danzo watched Mu and Sasuke from a hidden pavilion and planned to take both of their eyes when chaos erupted.
• Morino Ibiki opened the elimination matches, and Kankuro defeated Zaku with his puppet and poisoned weapons.
• Naruto, Sasuke, and Sakura won their matches, while the remaining Sound Ninja contestants barely advanced and searched fearfully for Mu.
• Gaara and Rock Lee entered the arena for the final match as Danzo watched and Mu prepared to observe their fight.

Rock Lee pushed Gaara to the brink with the Eight Gates, triggering Shukaku’s rampage during the Chunin Exams. As Naruto stepped in to protect Lee, Uchiha Mu secretly absorbed Shukaku’s chakra while Danzo prepared to seize the Sharingan amid the chaos.

• Rock Lee attacked Gaara with taijutsu, opened the first two Eight Gates, and battered his sand defenses.
• Gaara lost control and transformed as One-Tail Shukaku’s chakra erupted across the arena.
• Danzo planned to use the chaos to capture Sasuke and target Uchiha Mu, while Mu secretly absorbed Shukaku’s leaking chakra.
• Rock Lee collapsed, and Naruto rushed to shield him from Gaara’s sand as their tailed beast auras confronted each other.
• Danzo held his Root members back, waiting for a chance to act, while Mu continued absorbing Shukaku’s chakra from the rooftop.