Niino's been around since Jean's high school days—basically a childhood friend at this point. He's the type who tags along with Jean and his sister pretty regularly, which makes sense given how long they've all known each other. When he's not hanging out with them, you'll find him taking pictures for some journal work he does. He's solid enough that Jean and his sister are genuinely comfortable having him around.
Content compiled by AnimeList.moe from publicly available sources.
