Twins Come to Your Door and Activate the Invincible Nanny System!

[Invincible Dad System + Single Female Protagonist + Pure Love + A Maniac Who Dotes on His Wife and Baby] During college, Gao Cheng and Li Jiaying met at a freshman party. After getting to know each other, they soon fell in love. Not long after Gao Cheng spent his birthday with Li Jiaying during the summer vacation of his sophomore year, the two lost contact. … Two and a half years after graduation, the unemployed Gao Cheng lay dejectedly in bed and fell asleep, when he suddenly heard the sound of a cute baby coming from outside the door. "Daddy, open the door! I'm Xiaotong!" Gao Cheng opened the door and saw a little girl with cute breasts standing at the door, and behind her was a little boy who looked very similar to her, poking his head out of her shoulder curiously. Bite! The invincible daddy system has been activated! [Ding! The host cooks for the twins for the first time, and is rewarded with five-star cooking skills! [Ding! The host applies medicine to the twins and is rewarded with divine medical skills! ... As long as Gao Cheng does something corresponding to the twins or Li Jiaying, he can obtain a series of rewards and skills. From then on, Gao Cheng began to lead a life of raising children and doting on his wife! The introduction is weak, please read the text!