To Save Them from Darkness, I Must Conquer the Evil Spirits!

When Japanese exchange student Lin Ye awakens a mysterious system, he's thrust into a hidden world where darkness lurks beneath everyday smiles. His first mission? His own landlady is marked as an evil spirit on the brink of corruption! Racing against time, Lin Ye must unravel her deepest secrets and pull her back from the abyss. But she's just the beginning—more beautiful yet tormented souls surround him, each teetering on the edge of despair. Can he save them all before darkness consumes them?