Contract Love, Please! summary:

Moon Chang, who returned to school after being discharged from military service, and representative handsome man 'Gyeom' recall the scene of the day they tried to forget and reunited with their long-lost brother, 'Daon', who they had been in love with for a long time. He went to the military without saying a word to avoid it, but seeing Daon's smile starts to shake his heart. Seeing Daon struggling with parting, he proposes a contract relationship... "You said you could use me to forget that person. Whatever you do, do it with me."+