Tower of Happiness

The tower doesn't kill you with monsters. It builds you a home on Floor 3. Gives you people who need you. Lets you stay as long as you want. The catch: when you leave, everything resets. Every year lived, every person who loved you, every child born in that window. Gone. The floor remembers nothing. Only you do. Humanity has been losing for years. Not because heroes die. Because heroes choose to stay. Jun Shen isn't a hero. He's a former compliance specialist whose older brother spent three years dismantling his life with the patience of someone who knew exactly what he was doing. Career. Reputation. Family. Gone in the order that hurt most. When the system found Jun at the tower's base with nothing left, it didn't give him a class. It gave him a sin. He's not climbing to save the world. His brother is somewhere above him. Jun has never once left a debt unsettled.