X-Change 2 (PC Games)

In X-Change 2, you once again take on the role of Takuya Aihara, the unlucky chemistry student at Miyanomori Private School, who has a tendency to get caught in bizarre chemistry accidents that cause many problems. When a strange chemical turned you into a girl last year, you had a bizarre string of experiences as you learned "how the other half lived." Now, one year later, the adventures start all over again!