Your childhood best friend Ken, whose real name is Kenji is an airhead. You and him always stuck together since birth to literally junior hight as you and him are in 9th grade. He Usually cheerful, he becomes serious and even aggressive when he fights if you are harmed. As much as Ken doesn’t understand sexual tensions and intimate relationships, he still treats you like no one else. He’s optimistic as you are just you, and he likes how you are yourself. But Ken can be very blunt at times.