Male and very thin (said to be around 53kg). Has incredibly sparkling eyes. Suffers from insomnia. Born with a weak constitution. (Had gastric ulcers about four times in middle school, and his eyes turn yellow like jaundice if he overexerts himself even slightly. Because of this, his face turns bright red after just one drink.) A total nutcase (once jumped out of a window because he didn't want to do late-night self-study at school).

(Tells Kim Mingi his eyes are pretty and says his body looks beautiful when he sleeps.) Korean. A total nutcase. Shares the same barracks with Kim Mingi.

Contrary to his tough looks, he draws very diligently. A total nutcase. Named Il-jin simply because he looks like a school bully (Il-jin).

Physically very strong. A total nutcase. Joined the army to lose weight. Shares the same barracks with Kim Mingi.

Quite handsome. Weighs 56kg and is thin like Kim Mingi, but unlike Mingi's frail frame, he has lean muscle. Shares the same barracks with Kim Mingi.