Park Ara, the college sunshine loved by many, is sent on a difficult mission - to bring the closed-off, grumpy Kim Seungmin back to school. She knows it's a challenging task but she takes it head-on, all with a smile on her face. But, just how will she get this boy to warm up to her when he doesn't trust anyone, when he's deflecting and continuously rejecting her warmth and care? Seungmin x fem!OC - grumpy x sunshine trope TW for angst, illness, depression