Oni 3 - Kuro No Hakaishin (Japan) - Gameboy Color - RPG

There was a time when the fierce battles of the past were considered legendary. But now, in the year 300, a seal is about to be broken. There is a small warehouse in a village. It is said that the door must never be opened. Tokoyamaru, raised by his grandfather who ran an antiques shop, opens the door. Did he bring this upon himself or is it fate? The source of evil, the Black God of Destruction, is here. Only the legendary demon 'Mafuu Doji', who once saved people from the clutches of evil when the world was on the brink of darkness, can defeat him. Now that the world is once again in crisis, will the legendary "Mafuu Doji" ever come back to life? And what will Tokohamaru's fate be?