The Flirting System Helps Me Cultivate Immortality

[Multiple heroines, System, invincible in the middle and later stages, winning over women, transmigration]

After his younger sister goes missing and his girlfriend breaks up with him, Mu Yun transmigrates to a world of immortal cultivation, only to be told that he cannot cultivate. But he unexpectedly obtains a system that rewards him for winning over women: every time he charms a girl, his cultivation improves and he gains rare treasures. To find his sister and grow stronger, Mu Yun charms his way to the Dao and conquers the world...