"I just wanted to know... what love really is." Having ended their mutually beneficial reciprocal relationship, second-year high schoolers Jougorou Kobato and Yuki Osanai go their separate ways. Osanai begins dating first-year newspaper club member Urino, who throws himself into covering a series of arson incidents happening around town in hopes of leaving a mark on the school and impressing Osanai. Meanwhile, Kobato starts a relationship with his classmate, Nakamaru, and settles into a peaceful daily life—until he happens to witness an arson scene by the riverside... What awaits Kobato and Osanai as they embark on a new chapter of their lives as "ordinary citizens"?

School x Supernatural x Mystery. This story takes place before the exorcist Kyougokudou opened up a used bookstore... Our setting is in Tokyo in 1948, just right after the war. Kanna Kusakabe had just become a second-year at a high school when she meets the new language teacher, Akihiko Chuuzenji. Mysterious supernatural things keep happening around Kanna. Once again today, Kanna is going to open the doors to the library prep room to seek help from the surly Chuuzenji-sensei who is waiting inside. A high school supernatural mystery featuring the unlikely duo between a teacher and a high school girl is about to begin!

Special based on the manga by Ooya Kazumi, published in Betsukomi Flower Comics. An all-male pop group doubles as a detective agency. The cute girl member of the agency is kidnapped when one of the men's past returns to trouble them all in the present.

It is a cross over between the series Lupin III and Detective Conan and takes place after the television special Lupin the 3rd vs Detective Conan. The plot follows Conan Edogawa who sets out to apprehend Arsène Lupin III, the suspect of stealing a jewel called Cherry Sapphire.

(Souce: Wikipedia)