A Certain Icy-Hot HERO, Book 1 - Todoroki-kun's Unexpected Adventure

THIS IS A FUSION STORY THAT'S BASED OFF THE MOVIE AND THE BOOK 'THE HOBBIT', THERE WILL SEVERAL CHARACTERS IN THIS STORY THAT COMES FROM OTHER ANIMES (WHICH I WON'T TELL YOU WHERE THEY COME FROM HERE, I'LL LEAVE THAT FOR YOU TO FIGURE OUT) ANY CHARACTERS THAT I INCLUDE IN THIS STORY DO NOT BELONG TO ME! ALL RIGHTS GO TO THE RESPECTED CREATORS!
and let's be real. Any story I create is basically my ADHD running loose and on steroids.
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Shoto Todoroki was living his seemingly normal life at his father's mansion on the hill. Even though he is living comfortable alone, he still hopes to make a legend of himself, but not in the way his father wants him to. He may be royalty, but his not stuck up like his father.
He starts to struggle with his life as a teenager and is caught up on the belief that his oldest brother Toya Todoroki is still alive. Even though he believes his brother is out there somewhere, he refuses to leave the mansion. He stays not for his father's sake but for his mother and his older siblings.
Until one day, a mysteriously young and handsome wizard comes around looking for a brave soul to share an adventure. This sort of pikes Todoroki's interest, but he reluctantly turns down the offer, though the wizard wasn't going to give up easily. The reason for his search of a candidate for this mission was because it was also a job offered by a particular group of characters that hail from the Fire Kingdom. And he did tell the company that he was going to find them a suitable HERO for the job.
Todoroki is only a HERO-in-trainer, so he doesn't quite understand the wizards decision. Why, out of all the official HEROs he could have scouted, chooses Shoto Todoroki for the burglar job?