Honkai: Becoming Mobius's Sister

Fate weaves an impossible bond when a stranger becomes the cherished little sister of the enigmatic Mobius. What begins as an unexpected encounter in a world on the brink of collapse transforms into something far deeper—a connection that defies the boundaries of family, friendship, and forbidden love. In the shadow of the Honkai, every moment together is precious, every confession carries weight, and every choice could mean the difference between salvation and loss. When destiny collides with desire, how far would you go to protect the one who gave you a reason to exist?