He's a former student of The Academy, an elite school in the city that only takes the best and brightest. After getting kicked out, he ended up back in his grandmother's tiny coastal hometown.
He lost his mom and his leg in an accident when he was young. Because of that, he can't handle dark or silent spaces—they genuinely terrify him.
To scrape together money for an advanced cybernetic leg, he got involved in a plan to salvage treasure from his grandmother's sunken storehouse. It's a pretty big deal for him, both financially and probably emotionally too.
Content compiled by AnimeList.moe from publicly available sources.