From the Start, I Begin My Journey by Snatching Xiaozhi's Pikachu

[Beast Taming] + [Feel-Good Read] + [Golden Finger] + [Comedy] + [System] + [Multiple Female Leads] + [Pokemon] + [Pokemon] + [Pokemon] + [Pokemon] + [Pokémon] Orphan Li Chaoyang accidentally transmigrates to the Pokémon World. He's the same age as Ash, and he also gains parents who love him dearly, letting him experience a mother's love. After feeling that love, Li Chaoyang vows that no one will ever hurt his parents in this life unless they step over his dead body. At first, everything in this world is just as normal as in the original story. Until that day. An all-consuming darkness engulfs the entire world. Riding a Mega Rayquaza, Li Chaoyang charges into battle with a humanoid Fire-type Pokémon at his side. The Pokémon wields a sword in its right hand and a cannon in its left, its imposing presence every bit a match for the Mega Rayquaza beneath Li Chaoyang...