Siwei Yan recruited graduates, developed his writing and publishing plans, and used The Killer of Meteor City to break through to Fifth-level Spiritual Pressure. His book drew the attention of Kurayashiki Kenpachi and Unohana Retsu, while Siwei remained unaware that Unohana intended to visit him.
Siwei Yan was drawn into the Eleventh Division’s Human World mission, where he uncovered human interference with souls and helped face an abnormal surge of Hollows. After the rifts produced two Great Hollows and the mission ended, Yan returned to Seireitei and was told to attend a Kuchiki family ceremony.
Yan Si navigated the Noble Council’s violent struggle while publishing Kuchiki Kyōka’s story and pushing the limits of his Zanpakutō. The arc ended with Yan Si and Kensei confronting the nobles after Kyōka killed his attackers and the nobles accused them both.
Yan Si was imprisoned amid Kuchiki Kyōka’s rebellion, then sent to Hueco Mundo with a Shinigami expedition after helping expose the crisis. The expedition was devastated, Ashido was left behind, and Yan Si prepared to return to Hueco Mundo with Captain Kenpachi.
Yan Si helped bring Gremmy into the Eleventh Division while Kurayashiki died and Chiziro Sochika was imprisoned after losing to Unohana. As Soul Society faced growing threats, Gremmy became Kenpachi, and Yan Si encountered the young Rangiku and Gin in Rukongai.
Yan Si uncovered the truth about his severed desire and fought in the Quincy war, then his lost desire manifested as a powerful King who attacked Seireitei. As Yan Si hid his connection to the invasion, Aizen stole a Soul King Fragment from Rangiku, and Gin brought her to Yan Si for help.
Yan Si recruited allies, explored the powers tied to his Asauchi, and helped Kūgo Ginjō establish himself as a Shinigami in the Human World. He returned to Soul Society and pushed Urahara Kisuke and Kurotsuchi Mayuri to investigate the fusion behind the Adjuchas he had fought.
Yan Si pursued answers about the Soul King, broke into the Royal Palace, and stole Sayafushi before escaping to the Human World. As Hollow corruption spread through Soul Society and Urahara completed the Hogyoku, Hirako and Kyōraku began investigating Aizen’s report about Yan.
Yan Si uncovered the Tsunayashiro clan’s secret and gathered Soul King Fragments, while Aizen and Kyōka drove events toward Hollowfication and framed Yan Si and Urahara. The arc left Yan Si fighting the newly Hollowfied Visored in Zhonghe as Hirako watched.
Yan Si helped rebuild Soul Society, took on Tōshirō Hitsugaya as his disciple, and joined Kuroyashiki Kenpachi and Urahara Kisuke on an expedition to confront Aizen. The expedition reached Hueco Mundo, where Kuroyashiki battled Nnoitra and Starrk while Yan Si met Aizen at Las Noches.
Yan Si prepared Soul Society for Aizen and the Wandenreich, then staged his death after fighting alongside Unohana and Zaraki in Muken. Living as a human with Yoruichi, he continued to work with Aizen and investigate the Quincy threat as Masaki Kurosaki and Isshin became involved in the coming conflict.
Yan Si helped redirect the war to Hueco Mundo, then led a group into the Royal Palace to confront Squad Zero and pursue the Hogyoku’s power. After creating a bead from Riden’s accumulated souls, he refused to absorb it and turned toward the Soul King, still intent on his original goal.
Yan Si defeated Yhwach and Aizen, helped reshape Soul Society, and led an expedition into Hell, where the survivors discovered that its power was linked to other worlds. After allies entered those worlds and Yamamoto destroyed Hell’s gates in one of them, Yan Si returned to Soul Society and chose to stay with his son while the captains guarded the realms.
No recap yet. An arc gets one once it has 25 chapters.