After JL, a member of AHOF, suffers a car accident, he wakes up with selective amnesia, forgetting the last seven years of his life, which includes his entire seven-year relationshipwith his co-member named Woongki. JL only remembers Woongki as a trusted friend. Following a private, devastating breakdown witnessed by the other AHOF members, Woongki resolves to conceal his profound suffering and play the role of the devoted friend,determined to slowly and subtly help JL recover the memory of their lost love. But things doesn't go easily... so Woongki suffered more.