Contrast and cuteness are at the core: the reborn tyrant turns into a busy dad; the calm wife is a madman who complains in her heart; the serious father-in-law is defeated by the cute baby; the villain boss falls for the childish words.
The daily embarrassment of parenting (poop and piss attacks), the battle of wits between husband and wife (funny moments of cold war and ice-breaking), the collision of concepts in intergenerational parenting (science vs. Folk remedies), and the child's troubles (Tong Yan Wuji).
Use business negotiation skills to bargain with your baby (eat an extra bite of food in exchange for ten more minutes of play); explain his "practical parenting economics" to an expert in a serious manner.