Seonho, whose secret feelings for Green have finally burst forth, declares that from now on, he will be a man, not just a friend. However, Green, fearful of losing his precious friend, avoids Seonho's feelings. Meanwhile, Kijung and Wooyeon are growing closer. The two schedule a date that isn't really a date, and on the day of the date, Wooyeon, who is waiting for Kijung, is quietly approached by the dark hand of Yerim, who has a crush on Kijung...

After Seonho's confession, Seonho and Green's relationship becomes increasingly awkward. Green finds this situation incredibly distressing. Wooyeon, too, hates the feeling of being small and being compared to others around her when she's with Kijung, and declares she'll never love her. Meanwhile, Wooyeon, who studied hard to confidently attend the "Spirit Fingers" club, finally tells her mother when her grades improve, but she's severely scolded and heartbroken...

Seon-ho's bombshell announcement that he's about to enlist in the military shakes Green's heart, and thoughts of Seon-ho fill his mind. Meanwhile, Ki-jung goes around bragging about taking responsibility for Woo-yeon after the kissing incident, and Woo-yeon begins to open up to Ki-jung, who, despite his awkwardness, is always bright and caring. However, Ye-rim, trying to break up the relationship between Ki-jung and Woo-yeon, asks Woo-yeon to join the "Spirit Fingers" gathering.