In her past life, the Immortal Emperor Su Yutang suffered the tragic fate of having her bones dug out, fortunately saved by her foster father Li Ci'an who risked his life to prolong hers, though he passed away with regret before witnessing Su Yutang become an Immortal Emperor. Reborn back to the day her bones were dug out, Su Yutang publicly chose the sect "waste" Li Ci'an as her dad. In this lifetime, Su Yutang willingly stayed behind the scenes, secretly imparting the strongest sword technique and repeatedly offering help. Under Su Yutang's "hardcore counter-feeding," her playboy dad embarked on a high-energy counterattack all the way, slaying powerful enemies, merging with the faith of all people to break through three realms in a single day, and finally ascending to the pinnacle as the world's only Great Emperor, with father and daughter joining hands to rewrite the fate of two lifetimes.