The Future Me is a Conqueror

Lin Zihan had been single. He had no luck pursuing any of the girls he had a crush on, not even his childhood friend. His future self appeared out of nowhere and charm Zihan's favorite girl. This future self of him called himself the Conqueror. He claimed he would change Zihan's life and the future of the four girls who were important to Zihan. (Source: Coolmic) Note: Includes three extra chapters.