Koike Atsushi

 (小池敦), better known by his stage names ATSU and ATSUSHI, is a member of LAST FIRST and a former member of LUV and EMALF.

He joined EMALF in January 2015 during LUV's hiatus. In 2016, he became a founding member of LAST FIRST after EMALF announced and indefinite hiatus.

Profile

 * He left LAST FIRST once, but re-joined the group on January 31, 2020.
 * His first child, a daughter, was born on March 4, 2021.