I remember reading this when I was a kid and I love the art so much. The MC called Hareta if i dont mistake. He is quite wild like the Tarzan version of Pokémon. The heroine is called Natsumi which is the onee-san version of Dawn (my childhood crush because she has a mature vibe like Cynthia). Mc genuinely just spams Piplup every time he fights (he even beat a few gyms with Piplup)
by Commercial-Idea7024