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This semi-spoiled rising pop star didn't know what to make of Kum-Ji at first glance. He was the first to realize Kum-Ji's true intentions about joining the Yo-I fan club. E-Soh first meets Kum-Ji while taking an elevator up to the rehearsal room. He refused to let Kum-Ji on, so she proceeded to attempt to kick his butt and call him names. When Kum-Ji is shocked that he is a member of Yo-I, E-Soh realizes that no true fan wouldn't know the members of their favorite boy band. Despite his initial reaction towards her, E-Soh found his feelings for Kum-Ji, and eventually confessed his love. His timing was less than perfect, as he confessed to her immediately after insulting her. E-Soh's battle for Kum-Ji's heart has become even more rocky since he has a possible new rival in one of his band mates, E-Wan. Despite E-Soh's bluster, he can be a very nice person at times and can also be very protective of Kum-Ji. When Kum-Ji was beaten up by jealous fan girls he was surprisingly gentle, but it is unknown what he will do when he discovers who is behind it all.