From Bliss: Isshin, the son of a prestigious samurai clan, travels to Edo with his most trusted servant, Seiichirou. Believing it to be the best for his master, Seiichirou leaves Isshin in the care of the Edo Fire Brigade's 48th team; or "Ku Squad". Without any knowledge of firefighting, can Isshin blossom with courage and show his true samurai strength?