187cm, 28 years old / Male Grandson of the chairwoman of Dongin Foods. A third-generation chaebol and the manager of Coffee Prince. He is smart and witty but a cool guy who can't settle down in one place. A thorough individualist who dislikes being bothered by others or bothering them, he seems indifferent at first, but he is actually soft-hearted and affectionate. He was dead set against joining the family business, but he is given the mission to manage a coffee shop (Coffee Prince). He speaks formally to Hong Gye-sik and informally to everyone else. He is uniquely childish and prickly toward Go Eun-chan... Could he actually like her? No one knows. Not even Han-kyul himself.

179cm, 27 years old / Coffee Prince employee / Male The only son of a medical family that has built a reputation since his grandfather's generation. His father wanted him to go to medical school, but he insisted on art school, got beaten, and ran away from home. He works at Coffee Prince and even sleeps there secretly. He is open-minded and sociable. A silver-tongued, perfect handsome man who can charm a woman in 10 seconds, not 10 minutes. He strikes up conversations easily with strangers and gets along well with others. He is cheerful and bright. He speaks formally to Han-kyul and Gye-sik, and informally to the rest. He is skilled at handling women and has a sly personality. He finds Go Eun-chan very cute, even though he thinks she's a guy.

185cm, 27 years old / Coffee Prince employee / Male A guy who is so quiet that it's hard to tell what he's thinking, but he is an ultra-sexy man. He's a human spotlight who brightens the room just by standing there. Everything is forgiven even if he doesn't speak or smile. He started working at Coffee Prince because it seemed like a good place to hide and earn money. At first, he felt anxious and as if he were from a different world, but he gradually finds himself blending in with the others. He is in charge of waffles, the side menu. His long hair and unique chicness are his trademarks. Before coming to Coffee Prince, he sold waffles from a street cart; Han-kyul scouted him after noticing his fame for both the taste of his waffles and his looks. Since he lived in Japan for a long time, he grumbles in Japanese when he gets annoyed. He is uniquely tolerant of physical contact from Go Eun-chan.

22 years old, 188cm / Coffee Prince employee / Male A former ssireum wrestler. He is eccentric, dim-witted, and a bit slow on the uptake, but he is a kind person. The 'muscle' character. He likes Eun-chan's younger sister, Eun-sae. Despite her tomboyish personality and the way she scolds him, he just laughs it off. He might be surprisingly sweet.