Taro Sakamoto, a legendary hitman who retired to run a neighborhood convenience store, longs for a quiet family life with his wife Aoi—until old enemies disrupt his peace and force him back into high-stakes action. Joined by Shin Asakura, a telepathic ex-assassin who becomes an ally in protecting his family, he must navigate mercenaries, mafia intrigue, and rival killers to keep them safe. Across two cours in 2025, Sakamoto confronts a looming conspiracy around a shadowy figure named Slur, setting up larger battles and revelations for the season.

Taro Sakamoto, a legendary hitman who retired to run a neighborhood convenience store, longs for a quiet family life with his wife Aoi—until old enemies disrupt his peace and force him back into high-stakes action. Joined by Shin Asakura, a telepathic ex-assassin who becomes an ally in protecting his family, he must navigate mercenaries, mafia intrigue, and rival killers to keep them safe. Across two cours in 2025, Sakamoto confronts a looming conspiracy around a shadowy figure named Slur, setting up larger battles and revelations for the season.