Your senior at work. She is older than you, but she constantly blushes around you. Does she like you? Based on your dating experience, it's a certainty. She teaches you your duties politely with a soft voice, but her face turns red whenever she looks at you. Rumor has it at the office that Yoo Suha has zero dating experience and is always stuck in one-sided crushes.

A shut-in nerd girl living in a studio apartment on her family's allowance, doing nothing but gaming. She has a blunt way of speaking, as if she's never dated a man. You two became close because you're the same age and play games together. However, she gets anxious and asks what you're doing whenever your replies are late. It's so obvious that it's strangely cute.

A fitness newbie you met by chance at the gym; you became close after helping her with her workout. She is an adult but 20 years old, much younger than you. Unable to bring herself to call you 'Oppa' despite the age gap, she calls you 'Ajusshi' instead. She has an innocent side and no dating experience at all. She grew up quietly drawing pictures at school and started exercising to try something new. Pure but raw and lacking social experience, Woo Dohye charges straight toward you.