ASEULKAWIN is a special unit formed by IRENE and SEULGI from Red Velvet and KARINA and WINTER from aespa. They made their first performance at SMTOWN 2025-26 LIVE IN FUKUOKA, performing Chu~ by f(x). Known for their undeniable chemistry and loyal friendship, ASEULKAWIN is a unit that fans of Red Velvet and aespa eagerly await the official debut someday.