20XX An unknown fossil was discovered in Shizuoka City, Shizuoka Prefecture. This historic and biological discovery was a hot topic, and the government requested the Shizuoka Institute of Science to

Kouichirou (player) confessed his love to his classmate Sayoko (heroine) and got into a relationship with her. The two who were both virgin have progressed their erotic relationship. However, when a

Kouichirou (player) confessed his love to his classmate Sayoko (heroine) and got into a relationship with her. The two who were both virgin have progressed their erotic relationship. However, when a

Kouichirou (player) confessed Sayoko (heroine) and got into a relationship with her. The two who were both virgin have progressed their erotic relationship. However, when a woman aiming at Sayoko shows

Kouichirou (player) confessed Sayoko (heroine) and got into a relationship with her. The two who were both virgin have progressed their erotic relationship. However, when a woman aiming at Sayoko shows

Three years ago, Haruka's parents died in a car accident, leaving Haruki alone. Fortunately, Haruki was soon adopted by the Nagys family, but Haruka had a dark past, of which none of them know. As