Virtual idol group 사령화 released their second digital single '윤회' on the 25th. The song expands on the group's fantasy world, exploring themes of water and seasonal cycles. 사령화 is a virtual artist group under GRIM Production, consisting of four characters. Their music is known for its enchanting tone, completed by the group's unique blend of sounds. | Virtual idol group 사령화 released their second digital single '윤회' on the 25th. The song expands on the group's fantasy world, exploring themes of water and seasonal cycles. 사령화 is a virtual artist group under GRIM Production, consisting of four characters. Their music is known for its enchanting tone, completed by the group's unique blend of sounds.