TREASURE have just dropped bonus concept teaser images of hyung-line members Hyunsuk, Jihoon, Yoshi, and Junkyu, as they continue to gear up for the release of 'The Second Step: Chapter One'.

TREASURE's 1st mini album 'The Second Step: Chapter One' will signal the rookie group's long-awaited first comeback in approximately a year, since the release of their 1st full album 'The First Step: Treasure Effect'. For this set of bonus concept teaser images, the TREASURE members go from a vibrant colored background to a stark, white interior, pulling off a dramatic mood. 

Meanwhile, TREASURE's comeback with 'The Second Step: Chapter One' is coming up on February 15 at 6 PM KST.