Pokemon: My Legendary Journey with Charmander

(A little slice of life, comedy, dual protagonists, a System with a particularly strong presence, no female lead, Charizard is the featured Pokemon, and Legendary Pokemon will appear.)

With help from Da Yun (?), Qian Cailu, a young man from Earth, was reborn on Blue Star. He thought it was just an ordinary world, but... what was that Bulbasaur lying beside my cradle?!

Looking forward to Pokemon, he chose his favorite Charmander as his Starter Pokémon when he turned eighteen. Then a gift arrived, and it was destined that he and his Charmander would become legends... (I’m not great at writing blurbs, so please read the story itself.)