Junggigo released "Too Good," soundtrack of KBS drama "Hi! School - Love On" on July 25.

The song is Junggigo's first-ever soundtrack recording; the song is an urban dance song that fits the drama's style and tempo. The song had been used as the characters' theme song and ending title, earning the reputation "effect of Junggigo's 1 minute."

Group Boyfriend's Minwoo featured in the rap of the song.

"Hi! School - Love On" is a romantic coming-of-age drama featuring INFINITE's Woohyun and Sungyeol and actress Kim Se Ron.