nothing that i can't change if you're interested! they could genuinely just be friends or maybe they actually have hooked up, but seunghyun (english name tbd) has a tendency to show affection with either gifts or "here just take my card to get it!" because he's awkward with words and unfortunately learned at a young age that people only like material goods and he hasn't quite unlearned that yet! so maybe a little bit a sugar baby but only in an incidental way?