When they find out their community is plagued by debt, three high schoolers in an old country town set out in search of some ancient buried treasure.

An original story based on the characters of Hayamine Kaoru's mystery novel of the same name. Naito Naito, a second year high school student who has...

One day, the legendary game creator Eita Kurii announced a new game that only those who solved the mystery can play. The two boys Naito and Ryuo take...