Ship of Theseus

Ship of Theseus manga summary: 28 years ago, Tamura's parent was responsible for a mass indescriminate poisoning case while he was in elementary school, and he grew up branded the son of a criminal. After his wife dies in childbirth, Tamura heads back to Hokaido to confront his past. The mysteries surrounding his father, a police officer, goes back to the year of 1989...