Meet Byun Baekhyun, an independent youngster who is focused on continuing his A+ conquest in university. However, things just wasn't as peaceful as he wanted. Upon entering the university,he was met with his first D grade in life, anything-but-friendly schoolmates as well as financial burdens and most importantly, that weird senpai of his, Park Chanyeol. Always warm and kind, his senior appears to be a synonym for perfection or is there actually something more to it?