Recaps

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.

• Yan Si refused the Captain-General position, killed Yhwach and Ichibē Hyōsube, and made Yhwach the Three Realms’ new linchpin after the Soul King explained his plan to go to Hell.
• Yan Si defeated Aizen, accepted the Soul King’s request to wait five years, and helped Kyōraku take command and establish reforms in Soul Society.
• Yan Si trained Ichigo, joined the Hell Investigation Corps, and entered Hell, where the First Generation captains attacked the expedition and proved able to regenerate.
• Yan Si and Aizen found the Gates of Hell and learned that destroying Hell’s surroundings could weaken it, while Yan Si Ming opened a gate to Soul Society in search of his father.
• Yan Si and Aizen discovered that Hell drew power through gates to other worlds, so their companions entered the connected worlds while Yan Si returned to Soul Society with Byakuya.
• Yamamoto and Sasakibe reached the world of One Piece, fought the forces of Hell, and Yamamoto erased Imu and destroyed the Gates of Hell there.
• Aizen established Dawnlight Village in the world of Naruto, while Yan Si reunited with Yan Si Ming and agreed to remain in Soul Society until his son grew up.