Kou is staying at the dorm of Seiran Academy High School to prevent himself from acting on his love for his sweet and meek stepbrother Naruki. But Naruki follows him to Seiran! Now, Kou has to protect Naruki not only from himself, but from other students who want to have innocent Naruki for themselves. Enter Yoshino, Kou's roommate, with his brilliant plan hypnotize Naruki into becoming someone who can defend himself. Kou reluctantly agrees. But the result blows Kou s mind off because now every time Naruki is aroused, he develops a split personality seme-Naruki, who will take any chance to top anyone, but most especially Kou!
In a special additional oneshot, model-student Satoru is called the homo-making machine of Seiran. He's willing to sleep with just about anyone. But in his heart, he only wants to be held by his friend Riku. Too bad Riku seems to consider him as just a friend. Or is there something more to Riku's mothering habits and concern?
