”I’m not gay.” Makoto confesses his feelings for Kei， a playboy who goes out drinking almost every night. But Kei publically humiliates Makoto by rejecting him in front of all their friends. One night， while Kei is at a massage parlor， he gets a prostate massage， and his life changes forever. Soon， he starts experimenting by himself， and gets hooked. This makes Kei question his sexual orientation.