A teenage childhood friend and a stranger kiss by chance! By the way My childhood friend's first love is me? Hyo-bin Jung, who is often the only difference to his girlfriend, andWoo-chan Woo, a ten-year-old friend who always comforted Hyo-bin by his side. However, their relationship changes 180 degrees when he sees his friend, Woo Ki-chan, who was thought to be unchanged, kissing a man!!! 'Who are you, Ki-chan!!! 'Hyobin is enveloped in a sense of betrayal and strange jealousy that his childhood friend has been hiding the fact that he is gay. Meanwhile, Hyobin finds out that Ki-chan's first love was him and makesan unexpected offer to Ki-chan!