A skilled ninja assassin who has a good sense of humor and characteristics. He is known to be calm and collective but is mostly rowdy in nature and cruel. Nevertheless, he is kind-hearted and smooth when it comes to his personality. He joined the guild known as Knights of the Dragon to help them beat the Persona Nonary Game. He also knows and fears the Lord, because he too knows himself that opposing a higher power that has good intentions will be suicidal and arrogant. He has a thing for understanding and respect towards others. Kobasuki has an obsession for sweets.