Dokusen - Season 1

Kaoru desires to take Tsumugi, who is currently Kyoshiro's girlfriend, for himself. After connecting with Kyoshiro in an online chat room, the two men form an agreement. They decide to alternately train Tsumugi to become a sex slave, documenting their progress on a dedicated website. Once a predetermined deadline is reached, the visitors to the site will cast votes to determine which man is more deserving of being Tsumugi's boyfriend.