"Acoustic" is a youth movie about 20-year-olds who look to music for their hopes, dreams, and love. Sin Se-kyeong will play a vocalist who has a rare disease that requires her to eat only ramyun. Seulong partners with Baek Jin-hee to become an awkward but lonely boy and girl. Also, Lee Jong-hyeon and Kang Min-hyeok from CN Blue play a drummer and a guitarist who enter a new music world after meeting a bakery owner. In the movie, the song 'L.O.V.E.' that Seulong sings is a song that 2AM members sang for the soundtrack. They wanted to support Seulong in his first movie. It is a bright and soft melody that captures the heart. It also written by a hit song writer. Seulong also appears in the music video as an awkward dancer. The music video is very popular and drawing a lot of attention to the movie.