Nepo Zombie: My Relatives Run Every Dungeon

The head nurse who runs the S-rank hospital dungeon is a ghost, and the players who enter to clear it do not come back out. Louie Barton is ten years old when he crosses into the spirit world and the Kin-Binder ability wakes up in him. It does one thing: it tells him who he is related to. The head nurse turns out to be his aunt. After that he keeps finding relatives. The Crimson Wraith in the corridors is family. So is the Copper Coffin Bride. So is the Gloom Sovereign, who rules the underworld. Louie acknowledges each of them in turn, and each of them takes his side. With his dead relatives walking ahead of him, the dungeons stop being places he has to fight through. He clears them one after another and ends up standing over both worlds, the living one and the other one.