Umemiya gathers Bofurin to warn of Yamato Endo's return. The episode highlights Endo's past, Umemiya's leadership, team unity, and Sakura's growth as they prepare together for the coming threat.

The group unites under Suzuri, choosing a new path with Roppo Ichiza. Shizuka apologizes to Tsubakino and Kanji. As everyone finds harmony, tattooed ex-Furin student Endo appears.

Shizuka tries fleeing to GRAVEL's leader Suzuri, but Tsubakino and others stop her. After she declares wanting to stay, Tsubakino faces Suzuri seriously, their fight becoming a deeper exchange.

A group of criminals called GRAVEL wreaks havoc on Keisei Street looking for Shizuka. Roppo Ichiza and his allies confront them, but are outnumbered. Meanwhile, other members protect Shizuka at the OUGI Bar.

After helping Shizuka Narita, the group meets Roppo Ichiza, a team led by Kanji Nakamura who had a rivalry with Bofurin. At the Ougi Bar, where Kanji and Shizuka work, they see Tsubakino pole dancing.

Tsubakino guides the boys through Keisei Street's neon district of bars and mahjong spots. As they go to meet him, a girl in torn white dress falls onto Sakura. Before they can talk, thugs appear.

Tsubakino guides Sakura, Nirei, and Suo to elderly Ito's residence.

Sakura feels ineffective after fighting Keel. Seeking advice, Kaji tells him to trust based on experience while Umemiya urges him to give it his all. After recovering he faces his class ready to share his true feelings about being captain.

After defeating KEEL, Sakura misses school with a bad cold. Nirei calls to check on him. Later, Nirei and Suo from class 1 visit his apartment with supplies, wondering about his out-of-town student life.

Bofurin defeats KEEL members and saves Nagato. After explaining events to others, Sakura shares feelings as Nirei wakes up. Other students speak up while Kaji watches KEEL with a mysterious look.

At the warehouse, the battle between KEEL and Bofurin continues. Kaji prepares to fight Shingo, KEEL's leader, while the others, Sou, Taiga, Kiryuu, Sugishita, and Sakura, confront the boss's strongest henchmen.

Bofurin sets out to find the KEEL gang's hideout to confront them and put an end to the Anzai problem. What they don't know is that they'll stumble into an unexpected trap.