In Tengoku Daimakyou, fifteen years after a catastrophic disaster shattered civilization, the remnants of humanity live among dangerous man-eating monsters and the scars of a world that never fully recovered. Inside an isolated facility, children are raised in apparent safety, taught to follow rules and trust the fragile order that protects them from the outside. But as a few of them begin to question the boundaries of their sheltered life, they are drawn toward the truth of what lies beyond the nursery walls and the cost of leaving it behind.
Outside the facility, Maru and Kiruko cross the ruined landscape in search of a place called Heaven, each carrying grief, secrets, and motives tied to their past. Their path leads through a land where every ruined settlement, hidden danger, and uncertain ally can change the next step. As the two storylines move closer together, Tengoku Daimakyou becomes a story about survival, loss, and the uneasy hope that something better may still exist beyond the devastation.
