SANDEUL has released a new image and a book of Calligraphy lyrics just a week ahead of his comeback.

SANDEUL opened four teaser images of his second solo mini album "One Fine Day" and the title song Calligraphy lyrics through the official SNS account of his agency WM Entertainment at midnight on May 28.

In the released photos, the SANDEUL catch the eye with their warm and dandy charm set in Berlin, Germany. The lyrics teaser, which is caliglopied from some of the released album names and title songs of the same name, "One Fine Day," has the lyrics for the title song in Calligraphy. The fresh yet lyrical atmosphere of the SANDEUL is hovering, raising questions about the new song.

As the album captured music fans' ears with songs with authentic sensibilities that are different from those of B1A4 music, music fans are focusing on the album, which will be completed with more subtle sensibilities.

SANDEUL’s solo album comes about three years after his first mini album "Stay As You Are," released in October 2016. At that time, SANDEUL proved his popularity by winning the title of "Pure Ballader" by topping various music charts with his album and the Title track.

SANDEUL’s second solo mini album "One Fine Day" was released on various music sites at 6 p.m. on June 3.