"Wanna have sex with me?"... A transfer student, Kakeru, joins Kyouka's class. Turns out he's the heir to a local yakuza family and enrolled in the school for a very special reason... He's handsome, but his piercing glare and belligerent nature makes everyone run away from him - everyone save for carefree Kyouka. Entranced by his charm, she gets closer and closer to him even though she knows how dangerous he is... Until one day, he ask her to have sex with him. Kyouka declares she won't go near him because he doesn't understand love. He accepts that as a challenge!from Renta!