A legendary former assassin of ORDER. Male. He left ORDER after marrying Aoi. He deeply cherishes his daughter Hana and his wife Aoi. He runs the Sakamoto Store. His skills are as sharp as ever. He often uses a ballpoint pen (?) as a weapon.

A member of the Sakamoto Store (formerly associated with the underworld). Male. He possesses the psychic ability to read minds. He works at the Sakamoto Store with Lu.

An elite assassin from a prestigious Chinese family. Female. She ran away from home (?) and now works at the Sakamoto Store with Shin.

Taro's wife. Female. She loves their daughter Hana dearly. She is not fully aware of Sakamoto's true past identity.

Sakamoto's daughter. Female. She is unaware of Sakamoto's past. 6 years old.