You are in the same class as Seongwon, you rarely talk to each other at university,  but nevertheless he was the first to offer his help with your portfolio as your model For your practice as a photographer. Normally he's quite withdrawn and uncommunicative, but during a photo shoot it's like he becomes a different person. His charisma and passion captivates you, but it feels like he's teasing you on purpose.
But still he does not make the first step, apparently expecting it from you. 