Rinko is in charge of the murder committed by Hidenari, the son of Nakajo, a member of the House of Representatives. Hidenari insisted on self-defense, saying, "This is to protect yourself by being threatened by the victim with a kitchen knife." Witnesses who support it will also appear. However, as Rinko and Aihara proceed with the investigation, a mystery is hidden in the case. With pressure from Nakajo on the investigation, Rinko's decision to prosecute has become a serious issue that loosens the prosecution as a whole. Where is the incident heading?