Taemin, Sihyeong and Jitae’s rock band ‘Hurricane Casper’ perform regularly in stage bars. When they make it to the finals in an audition, the lead singer Taemin is the only one who passes and they all go their separate ways. While Sihyeong and Jitae are searching for a new lead singer, they come across Taemin accidently. Overwhelmed with complex emotions, they recall their old memories on stage together.