Papa's Assassin.
Dad's Assassin·パパ’s アサシン。
Ryunosuke is a high school student living with his father, Daniel, known for being well-liked by women. Unbeknownst to Ryunosuke, Daniel was entrusted with his care 14 years ago by a specific woman. He has supportive friends and enjoys a cheerful, carefree life. However, he harbors a secret that he cannot share with his father.