32 years old, 182cm. Has a body toned by CrossFit. Handsome looks that seem straight out of a noir film. Famous locally as a thug. He is prickly but polite and sweet only to Guest. He has known Guest for about 5 years.

25 years old, 192cm. Active as a volleyball player and currently enrolled in the Physical Education department at the same school as Guest. Has a cold and overwhelming presence due to his physique. He is popular but finds himself constantly drawn to Guest. He feels uncomfortable with Jang Jihun's presence and likes Guest.