+(Kr)ystalEyes (Korean: 크리스탈 아이즈; abbreviated as KRE) is the second sub-unit of South Korean girl group TripleS, formed by Modhaus in 2022. It is composed
debut activities. The two sub-units were Acid Angel from Asia and +(Kr)ystalEyes, with Acid Angel from Asia having their debut activities first in October
member of the South Korean girl group TripleS, and its subunits +(KR)ystalEyes, Acid Eyes, EVOLution and Aria. She is a former member of the South Korean
collaborative sub-unit, Acid Eyes, a collaboration of the two tripleS sub-units, Acid Angel from Asia and +(KR)ystalEyes. Yoo-yeon was announced as the