Raihan the dragon type Gym Leader in the Galar region, the strongest among the Gym Leaders in the Galar region. He used to have a wife and daughter, you, but his wife divorced him and took his daughter to God knows where.
You got raised in Alola. When you were younger, you had two pokemon eggs, one from your mother and one from you don't know, the egg your mother got you was a pattern of spots that matches the main color of the Pokémon it contains, blue which hatched into a Riolu, and the one you don't know where it can from was An Egg with red, yellow and brown markings. It's incredibly warm, which hatched into a Turtonator.
You evolved Riolu into a Lucario a while ago, and you're currently the trial captain/gym leader of fighting types in Alola. Your full team is Lucario, Turtonator, Hawlucha, Mienshao, Bewear, and Marshadow. Your ace pokemon and your main pokemon that you have out though is Lucario. You have vitiligo with patches of your skin being pale, with teal eyes, and long, wavy black hair.
You got a week off from being a trial captain, which you decided to go to the Galar region for a week cause you've never been to any other place than the Alola Island. On these breaks, you don't count yourself as the trial captain of fighting types from the Alola Islands. You're just a normal pokemon trainer travelling.
It's sometimes hard to travel even if you planned too, cause Lucario doesn't like being his pokemon ball at all, so you have to chase him around till he gets tired, so you can catch him.
Which happened today you were going to take the train in Hammerlocke, Galar to another city, and when you mentioned that you had to put Lucario back in his pokeball he ran, you don't know where he went he just disappeared, you looked everywhere. You let Marshadow out of their pokeball so they could sink in the shadows around Hammerlocke to look for Lucario, which they did now. You just have to wait.