[ Animated XXX ] Zoku Gosenzo San'e 02

Everyone is glad to see Gen return after his trip to the United States. His absence was keenly felt by all of the female members of the club. However, despite all the care he's had, his condition hasn't improved at all. He was unable to treat his ailment, and to make matters worse, a number of bizarre occurrences had taken place at the school. People are collapsing from blood loss, and vampires have emerged. Now it's up to Gen and his pal to unravel this riddle.