en Cuevana 3. An erotic drama adapted from the comic of the same title by popular manga artist Yamamoto Naoki, known for his extreme sexual depictions, starring Kohzuki Luna. On the day of the school festival, Haino goes up to the roof of the school and runs into Eri Kutani, an honor student. Eri recommends a drug called BLUE to Haino and invites him to have sex with her...