Book-Traveling System: the Male Protagonists Are All My Younger Brothers

Li Changsheng is an old monster who has lived for who knows how many years. Everything started when he got up in the middle of the night to eat barbecue. "Ding, the host Li Changsheng has been successfully bound. The mission goal is to conquer the male protagonist of the small world and become his younger brother. The mission reward is '100 years of longevity'. The mission details are being issued to the host." "Oh, it's only a hundred years of life. Do you know how long I have lived? Even if I jumped from here today, I would never..." "Ding dong, life span increases by 100 years." "Ding dong, life span increases by 100 years." … … "Congratulations to the host. The current lifespan has reached 3.5436 Million years. Please keep up the good work." Li Changsheng looked around at the small world male protagonists who were bowing their heads. The reasons why he has a long life but not a long life are all because his brother does not have to suffer the pain of breaking off the engagement, being humiliated and having his spiritual roots disabled. Instead of suffering and later retaliating for revenge, it is better to come under his command and become his younger brother. He is Li Changsheng! But for the happiness of the brothers! The first world: "The Counterattack of Supporting Characters in the Novel of Waste Chai Chuan Shu" Li Changsheng took the system to pick up the male protagonist of this world in a strange world. He traveled through books to cultivate immortality in the strange world. He suffered humiliation and lost his love along the way and then counterattacked to the pinnacle of life. From then on, he sat on the endless mountains and rivers, hugged him from left to right, and missed the white moonlight in his heart who died for him. But since Li Changsheng is here, he has no reason to let his brothers suffer! Brother! I'm here to save you!