Mikai Yui is a high school girl detective... sort of! She's already 19, but she's on her third repeat of the final year of high school. It seems like people get murdered around her all the time, but she's always excited to declare her expertise and trip over the body. Her "assistant," who she calls "Rinrin," is actually just a classmate (not an assistant or even a friend), who happens to be a lot better at figuring out murder mysteries. Their first murder of the series happens on a school excursion, when a maid finds a man stabbed to death in his hotel room!

Kikuru Madan, a monster hunter with excellent performance because of his particular job in the forest, decides to quit his job because he doesn't want to waste his youth. The reason he wants to quit was that one of his friends got married.

One day there is a new recruit. Enome the Guild Receptionist asks him to accompany Hitamuki Kyan the Lolipai Martial Artist to watch her back and teach her how to work. He accepts the request, half because he was worried about her and half because he wanted her to become his successor before he retires completely. Sadly, his plan to retire is derailed by Hitamuki being useless and always attracting some monster. Can Kikuru Madan retire peacefully, despite being saddled with a useless newbie?

Hunting erotic commentary enthusiastically!

When Chinatsu joined the student council, she found it wasn't nearly as cool as she had expected. The president just slept all the time, and the vice president just did paperwork. There was no fighting evil, no sex appeal... just normal school stuff. It's up to Chinatsu to liven things up!