Four years later after he escapes outside Sanguinem, Yuichiro joins the Japanese Imperial Demon Army, but is eager to become a member of the Moon Demon Company, their special vampire hunting force led by Guren Ichinose. However, due to his reckless behavior, Yuichiro is advised by Shinoa Hiragi to make a friend in his school before the promotion can be granted. Yuichiro befriends Yoichi Saotome, who was being bullied by three students named Satoshi Yamanaka, Shishido and Yuji. Yoichi intends to avenge his sister Tomoe Saotome, who was killed by a vampire, by joining the Moon Demon Company. Later, a school evacuation is initiated when a female vampire attacks the school. Going against orders, Yuichiro faces the female vampire alone, that is until Guren arrives to kill her instead. Since Yuichiro fulfilled his requirement nonetheless, Shinoa enlists both Yuichiro and Yoichi into recruit training.