A long-established Fugu restaurant The owner, Kenji Kirioka, died of blowfish poison. His wife, Satsuki, was suddenly shocked. In addition, the store is on the verge of closing due to the damage caused by rumors. Masaharu, a disciple of Kenji, comes to Satsuki. Impressed by the enthusiasm of "I will definitely rebuild the store!", Satsuki hands over the renovation funds to Masaharu. But this was the beginning of all the tragedy. The "poison" of the disciples gradually erodes Satsuki's body ...