Dad's Fake Marriage, Sisters Obsess Over Me

After his father remarries, Zhang Yu accidentally enters the wealthy stepmother's home and gains five stunning sisters. Initially ostracized by them with his favorability rating dropping below zero, he binds to the Infinite Luck Card System, where increasing favor allows him to draw skills and earn money. From gifting top-tier presents to boost approval, to leveraging card skills to dominate the business world and dismantle villains, he engages in playful banter and mutual protection with his sisters, uncovering the secret of the fake marriage while earning genuine family bonds. This full of surprises and twists cohabitation story follows an ordinary boy on a cheat-code rise to become a life winner with the help of his system and sisters!