Yasashii Succubus-chan to 3

A serial killer is on the loose in Japan. The victims are known as “dry corpses” due to their mummified appearance. A high school student overhears a rumor that the killer could actually be a succubus, which would explain the mysterious smiling expression on each of the victims. On his way home, the curious student aberrates towards the most recent crime scene; but when a scantily clad woman suddenly appears behind him, he may become more involved in the murders than intended.