Rebirth Xiaozhi has a system

A Pokémon fan is reborn as Xiaozhi and returns to the Kanto region. He merges with the Xiaozhi who has just set out in this world, and the new Xiaozhi has an auxiliary system to make up for the regrets of his previous life. How can the time traveler and the original body make up for the regrets of watching anime in his previous life? ...