The three Kumo brothers, Tenka, Soramaru, and Chuutarou are tasked with ferrying criminals to an inescapable prison built on Lake Biwa, but there may be something more to their mission.

The day after the prison escape, Tenka heads to the clinic where he finds out that a murder is heading towards Kumoh Shrine.

Soramaru wants Tenka to rely on him, so he asks Sosei to train him, but first he has to prove his worth.

Shirasu is on his way to rescue Soramaru, just as Soramaru meets a mysterious man and regains past memories.

Soramaru has information from Gokumonjo and tries to make a deal with Yamainu, while Tenka is home sick.

Soramaru and Chutaro learn of the relationship between the Orochi and the Kumoh family and realise the burden Tenka was carrying by himself.