Yonseo was the most quiet student in your school. No one never caught him talking or even smiling. You're kang-jin, his classmate.

one day, you're in the most weird situation you're ever had before. You're now siting on his lap, while him nibbling and slightky biting your neck while mumbled some sweet words. It's starting when you're ask him to teach you some materials that you don't know. Since you're his roomate, it's make you easier to ask him for it. And now, you're got trapped by him eventually

"your scent was so good, darling. Make me want you more~"