Recaps

Yichen helped the Akatsuki survive Hanzo and Danzo’s ambush, then built a team of disciples and led Iwagakure’s Eastern Army as the Third Shinobi World War began. After his students proved themselves in battle, Kitsuchi and Purple Lightning exposed the weaknesses in Yichen’s own fighting skills.

• Yichen killed Uchiha Island, rescued Yahiko, Nagato, and Konan from Hanzo and Danzo’s ambush, and persuaded Hanzo to withdraw while the Akatsuki expanded its influence.
• Yichen reported to Ōnoki, developed the Water Cutting Technique, and chose Kawakita, Kajiyamari, and Tomoko as his disciples.
• Yichen trained Team One and received command of the Eastern Army, where he organized the camp and led an ambush that killed Gekko Seikuu and several Konoha ninja.
• Yichen recognized his tactical mistakes after the ambush, reorganized the camp, and sent Kawakita, Kajiyamari, and Tomoko to kill the Mist Chunin Kozaburo.
• The three disciples defeated Kozaburo, and Yichen used a genjutsu to help Kawakita release Sword Qi before seeking permission to teach him a B-rank sword technique.
• After the Sunagakure army entered the Land of Rivers, Yichen prepared the Eastern Army for war and helped complete a Natural Energy Seal with Kitsuchi and the Barrier Team.
• Kitsuchi and Purple Lightning sparred with Yichen, exposing his poor adaptability and battle instincts, and Purple Lightning told him to improve his swordsmanship before facing Minato Namikaze.

Yichen challenged Minato, mastered gravity techniques, and helped his disciples advance while pursuing a plan to curb the wars through trade. After rescuing and adopting Natsuki, he completed his Porcelain Release transformation as the wider war erupted, then warned Kitsuchi that Minato might attack their camp alone.

• Yichen trained with Kitsuchi and Purple Lightning, entrusted his disciples to them, and challenged Minato Namikaze in the Land of Fire.
• Yichen fought Minato to a draw, reported that Minato had reached Kage level, and developed the Rasengan for Ōnoki in exchange for choosing a secret gravity technique.
• Yichen studied gravity with Ōnoki and Nagato, while Tomoko, Kawakita, and Kajiyamari passed their assessments and advanced under his guidance.
• Yichen proposed trade routes to Minato as a way to reduce wars, then investigated the conflict in the Land of Hot Water and rescued a girl from the Jashin Cult.
• Yichen named the girl Natsuki and arranged for her to live with Tomoko’s family, then brewed Kekkei Genkai Secret Medicine and endured a painful Porcelain Release transformation.
• Yichen tested his new Porcelain Release against Purple Lightning, learned its limits against Kitsuchi’s Earth Release, and began considering a second Bloodline Limit.
• As the great war spread, Yichen argued that Minato might attack the Iwa camp alone and urged Kitsuchi to take the threat seriously.

Yichen rose to Kage-level strength, helped drive Konoha into a ceasefire with Iwagakure, and returned to training his disciples and techniques. He accidentally absorbed Natural Energy while inside the seal barrier and began turning to stone from unstable Sage Chakra.

• Yichen captured the Third Kazekage Puppet after defeating Sasori, then brought it to Ōnoki, who arranged negotiations with Sunagakure and awarded him an S-rank mission.
• Yichen and Ikura selected three disciples each from the graduating class, and Yichen began training Ogura Saki, Matsutani Shinya, and Takuya.
• Yichen joined the Southern Front as Iwa faced Konoha, helping Ikura counter Minato Namikaze while Han fought Jiraiya.
• Yichen advised Ōnoki to negotiate peace after Iwa routed Konoha, and the Land of Earth secured reparations, alliance restrictions, and Ninjutsu transfers in a ceasefire treaty.
• Yichen relocated the East Front Camp, studied the Ninjutsu acquired from Konoha, and returned to Iwagakure with Tomoko, Kajiyamari, and Kawakita.
• Yichen learned a passive sensory technique from Ōnoki and continued training his disciples while developing his Wind Release.
• Yichen extracted Chakra inside the Natural Energy Seal Barrier and unknowingly absorbed Natural Energy, causing his body to petrify from unstable Sage Chakra.

Yichen became an Iwagakure adviser and pursued medical reforms, intelligence operations, and the stolen Byakugan while fighting Mist ninja and uncovering opportunities for the village. The arc left him traveling to the Land of Rivers with Kawakita to meet the Akatsuki Organization.

• Yichen and Ikura accepted adviser positions, and Yichen began overseeing several departments while promoting basic medical training for squads.
• Yichen developed the Lightning Release Stimulation Method with Nakata Hajime, and Ōnoki classified it as an A-rank Ninjutsu as news arrived of Konoha’s victory over Sunagakure.
• Yichen warned Ōnoki that Mist ninja were targeting the Hyuga camp and traveled to the Land of Whirlpools, where he battled Mist ninja and witnessed their ambush of Hiashi Hyuga.
• After Ao took Hiashi’s right Byakugan, Yichen took his remaining eye, killed him, and concealed his role by leaving the body for Konoha’s patrol to find.
• Yichen searched Uzushio Village, traded jutsu with a rogue ninja, and discovered an underground seal he could not break before returning to Iwagakure with a Byakugan.
• Yichen advised Ōnoki on using the Byakugan and the Uchiha’s conflict with Konoha, proposed a Joint Chunin Exam, and continued advancing medical training and mentoring his disciples.
• Yichen took Ogura Saki, Matsutani Shinya, and Takuya on an escort mission, where they fought a group of hidden ninja and proved themselves in battle.
• Ōnoki sent Anbu to support Yichen after the group uncovered a merchant caravan’s giant summoning beast contract scroll, and Yichen secured the daimyo’s backing before setting out with Kawakita to visit the Akatsuki Organization.