The indie pop duo Bolbbalgan4 has made a comeback with a brand new EP full of songs on love and growing pains.

Titled “Red Diary Page.1,” the digital version of the album holds five songs while fans who buy the physical album will be treated with a bonus track.

The title song of the album is “Some,” in reference to a neologism widely used in Korea that means the complicated stage between friendship and romance. The bonus track in the CD is a rearranged version of “Some.”