Original: 해피메리엔딩
Seung-jun, a wedding singer, finds himself withdrawn after getting his heart broken by his first love. Jae-hyun, a charming pianist, becomes instantly besotted and sets out to pursue him.
At a wedding, Seung Jun is introduced to Jae Hyun, whose friendly demeanor initially makes Seung Jun uneasy.
Despite Jae Hyun's messages and concern for Seung Jun, they do not make the latter feel safe and secure. Instead, they trigger negative memories from the past.
Even though past nightmares continue to haunt Seung Jun, he finally becomes willing to accept Jae Hyun's well-meaning intentions.
Seung Jun makes good on his word to give Jae Hyun vocal lessons, and the two of them gradually become closer.
Jae Hyun takes the initiative to spend time with Seung Jun when he's depressed, and the relationship between the two of them develops further.
Joo Won does whatever it takes in order to force Seung Jun to come back to his side.
Jae Hyun manages to get to Seung Jun in the nick of time to protect him from Joo Won, but it's because of this that the two of them end their relationship.
Seung Jun finally gets his wish and meets Jae Hyun again; what will happen between the two of them?
