The protagonist, an eighteen-year-old male who has been reborn back to his childhood in the 1970s. In his previous life, he was a naive, self-sacrificing big brother who suffered until he fell ill and was swindled out of his medical money by his younger siblings. After rebirth, he discovers he has a personal modern supermarket that he can access at will. He resolves to live for himself, coldly rejects the entitlement of his three older siblings (Lin Chaoyun, Lin Chaoxia, Lin Chaoyu), and forces them to work for labor points. He is protective of his youngest brother Lin Chaoxing, whom he feeds and cares for, while secretly using the supermarket to ensure he and his little brother are well-fed. He is pragmatic, calculating, and determined not to repeat the mistakes of his past life.
