My Strongest Master Pretends to Be Weak

Sinopsis

Ethan Sterling has hit the Great Emperor Realm, but all he wants is a quiet retirement. Too bad his system forces him to take on three misfits: a reincarnated empress, a human wrecking ball, and a girl who brings bad luck by breathing. His grand plan? Teach them to fake weakness and disappear. Then the Outer Lands demons show up, and the whole "stay invisible" thing goes out the window. Now this bunch of self-proclaimed losers has to fight, and the whole cultivation world has no idea what hit them.