Chapter Summaries

Fang Tianyi, an ordinary office worker, had vanished from his home and found himself in the Naruto world as an injured Hyuga Branch House Genin during the Second Shinobi World War. At 22:00, the Book of Ten Thousand Worlds let him contact his mother and the police, and the chapter ended as he sent a kunai through it to prove where he was.

• Old Li and Little Liu investigated Fang Tianyi’s locked-room disappearance and found no sign that he had left his home.
• Fang Tianyi woke injured in the Land of Rain with the memories of Hyuga Tianyi, a Genin caught in the Second Shinobi World War.
• The Book of Ten Thousand Worlds revealed that it could communicate daily at 22:00 and transfer non-living items between worlds.
• Fang Tianyi called his mother through the book, and Old Li and Little Liu heard him explain that he was trapped in the Naruto world.
• Little Liu recognized the Naruto setting and warned Old Li that the wartime ninja world was extremely dangerous.
• To prove his claim, Fang Tianyi pressed a kunai to the book, and it vanished in a flash of light.

After the Book of Ten Thousand Worlds delivered a blood-stained kunai from the Naruto World, Old Li and the others believed Hyuga Tianyi’s account and raced to prepare aid. As the communication window neared its end, they sent him a first-aid kit and a hand-drawn map, leaving his survival uncertain.

• A blood-stained kunai emerged from the Book of Ten Thousand Worlds, convincing Old Li and Little Liu that Tianyi was truly in the Naruto World.
• Old Li assured Tianyi that the state would help and learned that Tianyi was injured behind enemy lines, while the book allowed only ten minutes of communication and had strict size limits.
• Old Li instructed Tianyi to control his bleeding, disinfect and bandage his wound, seek shelter from the cold, and replenish his energy.
• Little Wang returned with a first-aid kit, Mother Fang gathered water and food, and Little Liu drew a map of the Naruto World and the Land of Fire–Land of Rain border.
• With seconds left, Old Li chose to transmit the medical supplies and map, urging Tianyi to stay alive.

Hyuga Tianyi treated his wound, used the stars and a map to choose east as his next direction, and remained stranded near the Land of Rain border. In the other world, Old Li reported the interdimensional contact and evidence to Bureau Chief Wang Jianguo, who activated a top-secret national response.

• Hyuga Tianyi cleaned and bandaged his shoulder, then rested with water and chocolate after receiving the supplies.
• Hyuga Tianyi used Polaris and the map to estimate his location and chose to head east toward the direction of the Hidden Leaf Camp.
• Old Li ordered the police officers to keep the incident secret, collected their phones, and reassured Fang Mother that the country would try to bring her son home.
• Old Li brought the Book of Ten Thousand Worlds, the kunai, and the recording to Bureau Chief Wang Jianguo and gave him a full report.
• Bureau Chief Wang Jianguo classified the incident at the highest level, activated the Deep Blue protocol, and ordered Old Li's team to secure the evidence until the takeover team arrived.

Hyuga Tianyi used the Byakugan and a deception involving a clone and Explosive Tags to kill two Rain ninja pursuing him. After vomiting from the shock of killing, he ended the surviving ninja’s life and was left exhausted and wounded.

• Tianyi woke in the rain, sensed two approaching Rain ninja with the Byakugan, and fled toward the Land of Fire.
• Tianyi tricked the pursuers with two fake Explosive Tag throws, then used a clone and a real tag to wound them in an explosion.
• Tianyi transformed an ordinary Kunai into his hidden position and detonated his final Explosive Tag between the Rain ninja, killing one and grievously injuring the other.
• Tianyi vomited after seeing the deaths and injuries, then decided the surviving Rain ninja could not be left alive.
• Tianyi stabbed the dying Rain ninja in the throat with a Kunai, ending his life.

Hyuga Tianyi escaped the Rain ninja and reached the Leaf Village’s B-7 camp, where he collapsed after identifying himself. In a separate storyline, a lieutenant colonel arrived in H City and assumed control of Incident “Dragon City” and its evidence.

• Hyuga Tianyi gathered supplies from a Rain ninja’s corpse and traveled through the night, using his Byakugan to avoid hostile patrols.
• Hyuga Tianyi reached the B-7 camp’s perimeter and proved his identity to two Leaf ninja with his Byakugan.
• Aoki escorted the injured Hyuga Tianyi into the camp, where he collapsed and remembered that his next contact was at ten that night.
• A military convoy brought a handcuffed lieutenant colonel carrying a black briefcase to the Municipal Police Bureau in H City.
• The lieutenant colonel presented a transfer order to Director Wang Jianguo and Li Xianghua, taking full authority over Incident “Dragon City” and its related evidence, personnel, and information.

Old Li, Little Liu, and Little Wang were ordered to travel under secrecy to Upper Capital with the Dragon City evidence. Aboard a covert train, they found Mother Fang, who was being taken to help with the effort to save Tianyi.

• The lieutenant colonel secured the evidence and ordered Li Xianghua, Old Li, Little Liu, and Little Wang to return to Upper Capital for confidential interviews.
• Old Li and the others handed over their communication devices, informed their families they were leaving for closed training, and passed security checks.
• The lieutenant colonel escorted them by convoy to a hidden freight yard, where they boarded a sealed sleeper car on a covert train bound for Upper Capital.
• Old Li discovered Mother Fang aboard the train and reassured her that the authorities were taking her to find experts who could help save Tianyi.
• The lieutenant colonel secured the briefcase and instructed everyone to remain in the carriage as the train headed north.

At Deep Mountain Base, Tian Weidong reviewed footage of the Book of Ten Thousand Worlds transferring a bloodied kunai and ordered preparations for the next contact window. In the Hidden Leaf camp, Hyuga Tianyi woke to find the book invisible to others, but ANBU arrived to question him about his squad's massacre.

• Tian Weidong watched the recording of the kunai materializing and ordered his staff to verify the other world and prepare to protect Fang Tianyi during the next transfer.
• Hyuga Tianyi woke in a medical tent and found the glowing Book of Ten Thousand Worlds floating in front of him.
• Mitarai Aoi checked Tianyi's recovery without seeing or touching the book, and he learned that it was eight in the evening.
• Tianyi realized he had two hours before the nightly contact window and began thinking about finding somewhere secluded.
• Three ANBU members arrived and demanded that Tianyi report everything about the Hidden Rain Village ambush and his movements afterward.

Tianyi gave the ANBU a cautious account of his squad’s ambush, while Root secretly marked him for close surveillance because his survival seemed nearly impossible. At the same time, the Book of Ten Thousand Worlds opened an energy channel, and Commander Tian told Fang Tianyi that the nation would support him and bring him home.

• Tianyi described his squad’s mission, the ambush, and the captain’s sacrifice during an hour-and-a-half interrogation.
• Three ANBU members judged Tianyi’s survival suspicious, placed him on the Class A observation list, and ordered an encrypted report sent to Lord Danzō.
• Tianyi realized Root might be watching him and considered what help he needed before the Book of Ten Thousand Worlds opened.
• At 22:00, the book released an unknown energy signal from beyond the Solar System, and Academician Chen concluded it connected to another world.
• Commander Tian told Fang Tianyi that the nation would provide support and help him return home.

Hyuga Tianyi contacted Commander Tian through the Book of Ten Thousand Worlds, exchanged information and samples with the nation, and received requested supplies. After contact ended, the book revealed a status panel showing his abilities and two available skill points.

• Commander Tian contacted Hyuga Tianyi and assured him that the nation would support him and bring him home safely.
• Tianyi reported his situation at the Konoha camp and requested grenades, compact high-energy food, and a foldable bulletproof vest.
• Tianyi sent the nation a scroll containing the Basic Chakra Refinement Technique and three Ration Pills, which the command center received safely.
• Commander Tian ordered special task forces to study the scroll and Ration Pills, while promising to deliver Tianyi's message to his mother.
• Tianyi put on the bulletproof vest and stored five grenades before the Book of Ten Thousand Worlds opened again and displayed his status panel with two available skill points.

Hyuga Tianyi decided to avoid the front lines by seeking a place in the Medical Corps and used a skill point to improve his first-aid ability. He rested in camp, planning how to prove his new skills and protect himself from ANBU scrutiny.

• Hyuga Tianyi assessed his weak combat abilities and concluded that he needed to avoid being sent to the battlefield.
• He decided to use his Byakugan and modern medical knowledge to qualify for a Medical Corps transfer.
• Hyuga Tianyi spent one skill point to raise First Aid from Beginner to Intermediate and gained extensive medical knowledge.
• He examined his shoulder with the Byakugan and judged that his enhanced medical skills could help him stand out in the camp.
• Hyuga Tianyi saved his remaining skill point and considered how to demonstrate his abilities, explain his sudden knowledge, and find a powerful backer.
• He rested as his wound healed, confident that he now had a hidden advantage and support from his motherland.

Hyuga Tianyi woke to a Hidden Rain Village raid on the medical camp and rescued Mitarai Aoi from two attackers using smoke, a clone, and Gentle Fist. After killing the incapacitated enemies, he joined Aoi in breaking through toward the main camp, where they hoped to find stronger defenses.

• Hyuga Tianyi activated his Byakugan and saw Hidden Rain Village attackers overrunning the medical camp.
• Hyuga Tianyi chose to help Mitarai Aoi, who was being held up by two Hidden Rain Village Genin.
• Hyuga Tianyi used a smoke bomb and Clone Technique to distract the enemies, then struck them from behind with Gentle Fist: Empty Palm.
• Mitarai Aoi thanked Hyuga Tianyi and prepared to secure the fallen enemies, but Hyuga Tianyi killed them with Kunai.
• Mitarai Aoi led Hyuga Tianyi toward the main camp as he watched their rear with his Byakugan.

At Leaf Village's frontline camp, Hyuga Tianyi tried to join the overwhelmed Medical Corps, but Root blocked him because he was under investigation. The vice captain formally requisitioned Tianyi to treat the wounded, and he began tending to a critically injured man.

• Mitarai Aoi led Tianyi to a camp crowded with wounded ninja, then hurried to treat an injured man.
• Orochimaru arrived on a giant serpent with Leaf ninja and surrounded the Hidden Rain Village forces attacking the camp.
• The medical vice captain ordered her staff to prioritize patients with a chance of survival as supplies and medical personnel ran low.
• Tianyi diagnosed a critically wounded ninja and offered to help, but a Root member barred him from treating anyone while his investigation remained open.
• The vice captain confirmed Tianyi's diagnosis and formally requisitioned him into the Medical Corps, invoking Tsunade's authority to make Root withdraw.
• After the vice captain and Aoi backed him, Tianyi knelt beside the critically wounded man to begin treatment.

Hyuga Tianyi used his Byakugan and modern first aid to save badly wounded ninjas, earning an official place in the Medical Corps. After treating the wounded all day, he collapsed from exhaustion and later woke leaning against Mitarai Aoi.

• Tianyi rushed to treat a wounded man, draining blood and air from his chest, removing bone fragments, stitching injuries, and binding his chest.
• The deputy captain examined the wounded man, praised Tianyi’s emergency treatment, and appointed him an official member of the Medical Corps.
• Tianyi took two assistants and spent the day treating severely wounded ninjas until he ran out of supplies and chakra.
• Tianyi collapsed beneath a tree and drifted into sleep from exhaustion.
• Tianyi woke beside Mitarai Aoi, realized he had been leaning on her shoulder, and hurriedly moved away.

After receiving gratitude for saving wounded ninja, Hyuga Tianyi was summoned to meet Tsunade at the main camp. He arrived as Tsunade and the others argued over the costly battle against Hanzo, and Tsunade recognized him for his medical work.

• Aoi told Tianyi that Tsunade had ordered him to report to the main camp, while the rescued ninja thanked him for saving their comrades.
• Tianyi followed Aoi to the main tent, where Tsunade, Jiraiya, Orochimaru, and Nara Shikaku debated the losses and strategy in the battle against Hanzo.
• Tsunade condemned Orochimaru's costly plan, but Orochimaru and Shikaku explained the threat Hanzo posed and warned that future battles would be harder.
• Jiraiya noticed Tianyi at the entrance, and Tianyi knelt and introduced himself as a Genin reporting under orders.
• Tsunade recognized Tianyi as the Hyuga Branch House boy who had used unconventional methods to save dozens of critically wounded patients.

After Tsunade learned that Hyuga Tianyi had saved twenty-six critically injured patients without Medical Ninjutsu, she assigned him to the front-line medical core team. Aoi gave him a scroll of basic battlefield techniques and warned him to master detoxification against Hanzo’s poison.

• Tsunade presented the emergency report on Tianyi’s treatment of twenty-six critically injured patients, drawing Orochimaru’s and Jiraiya’s interest.
• Tsunade appointed Tianyi to the front-line medical core team and ordered him to study Basic Medical Ninjutsu.
• Tianyi went to the treatment area and told Aoi about his new assignment.
• Aoi gave Tianyi a scroll covering Hemostasis, Regeneration, and Detoxification Techniques, stressing the danger of Hanzo’s poison.
• Aoi told Tianyi to memorize the scroll that night and promised to teach him Medical Ninjutsu the next day.

Hyuga Tianyi gained a skill point for his lifesaving work and decided to help counter Hanzo’s poison. He sent a poison sample and a medical ninjutsu scroll to the Deep Mountain Base, where experts began studying them.

• Hyuga Tianyi studied his panel and reasoned that saving many people had earned him a skill point, while killing Genin had not.
• Hyuga Tianyi asked Mitarai Aoi for a sample of Hanzo’s poison, and she gave him contaminated cloth sealed in a glass tube with strict safety warnings.
• Hyuga Tianyi sent the poison sample, a Basic Medical Ninjutsu scroll, and a report on the battlefield threat to Commander Tian at 22:00.
• Commander-in-Chief Tian Weidong ordered top toxicology and biochemistry experts to form a task force and investigate the poison.
• Commander Tian told Hyuga Tianyi that the chakra theory he had sent back had given the research team an initial direction.

Fang Tianyi sent biological samples to Blue Star so experts could investigate why humans in his world could produce chakra, then studied basic medical ninjutsu and used a skill point to improve his Ninjutsu attribute. He continued practicing the Detoxification Technique, the key to surviving Hanzo’s poison.

• Commander Tian told Fang Tianyi that humans in his world had far more cells than modern Blue Star humans and asked him to provide biological samples for research.
• Fang Tianyi sent blood, hair, mouth cells, and skin debris to the command center, then requested surgical instruments and medicines.
• Fang Tianyi studied the Hemostasis, Regeneration, and Detoxification Techniques and gained a beginner-level entry for Basic Medical Ninjutsu on his panel.
• Fang Tianyi spent one skill point to raise his Ninjutsu attribute from 3 to 4, improving his chakra control and understanding of the Detoxification Technique.
• Fang Tianyi resumed practicing the Detoxification Technique through the night, with greater confidence and smoother chakra flow.

Hyuga Tianyi learned three basic Medical Ninjutsu after watching Aoba Tachibana demonstrate them, astonishing her and the Medical Corps leaders. Aoi and the vice captain decided to report his exceptional talent to Lady Tsunade when she returned and have him continue building a solid foundation in the meantime.

• Aoba Tachibana demonstrated the Hemostasis Technique, Regeneration Technique, and Detoxification Technique to Tianyi, who performed each successfully after watching her.
• Aoba Tachibana rushed to tell Aoi and the vice captain that Tianyi had learned all three techniques in a single practice session.
• Aoi and the vice captain watched Tianyi demonstrate the techniques and confirmed his skill was genuine despite his lack of prior experience.
• The vice captain compared Tianyi's medical talent to Lady Tsunade's and suggested that she should guide him.
• Aoi and the vice captain agreed to monitor Tianyi, have him follow Ju and strengthen his foundation, and report his progress to Lady Tsunade after she returned from her mission.

Danzo learned that Hyuga Tianyi had survived the destruction of his reconnaissance squad and displayed unusual medical skill, then arranged for him to be connected to Nawaki’s missions. He left B-3 to watch Tianyi closely on the Land of Rain front and act discreetly if an opportunity arose.

• A Root ninja reported to Danzo that Hyuga Tianyi was the sole survivor of the Seventh Reconnaissance Squad and had impressed the Medical Corps with his emergency treatment skills.
• Danzo visited Hiruzen Sarutobi, who discussed the Land of Rain battle and declined to bring Nawaki back from the front.
• Danzo told Hiruzen about Tianyi and suggested connecting his missions with Nawaki’s so Tianyi could support and protect him.
• Hiruzen agreed to arrange for Tianyi and Nawaki to work together.
• Danzo ordered B-3 to take a squad to the Land of Rain front, observe Tianyi closely, and act discreetly if an opportunity arose.

Hyuga Tianyi continued his medical training and began treating wounded Leaf Village soldiers before being reassigned to Senju Nawaki's squad. He met his new teammate Moonlight Kaede and joined the Leaf Blade Squad, while worrying about the dangers of serving alongside Nawaki.

• Hyuga Tianyi trained in Basic Medical Ninjutsu with Aoba Tachibana and treated wounded patients with Aoba's and Aoi's guidance.
• Academician Chen reported progress analyzing Hanzo's toxin and Tianyi's cell samples, but said a usable antivenom would take several more days.
• Senju Nawaki told Tianyi that Orochimaru had assigned them to the same team, and Tianyi wondered why Orochimaru had chosen him.
• Tianyi said goodbye to Aoi and the Medical Corps, then followed Nawaki to the combat squad area.
• Nawaki introduced Tianyi to Moonlight Kaede and declared that Tianyi had completed their Leaf Blade Squad.