Luxion
Luxion started out as nothing more than a purchasable item from the cash shop in the original otome game. Nobody expected much from him back then—he was just cosmetic DLC, really. But in the current version of the story, he's become way more important, essentially functioning as the deuteragonist alongside the main character. He shows up in all the major story beats now, and fans often note how much his role has expanded compared to where he began.
Content compiled by AnimeList.moe from publicly available sources.
