Sakai Taichi

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 the ability to survive in any situation, teams up with Ryuo Soya, a talented boy whose father is the head of the Ryuo Group conglomerate. The two of them and others challenge "Area Z", a game created by the genius creator only known as "Kurii Eita". Can they complete their mission to save the city within 6 hours?