이달의 소녀 Odd Eye Circle

Note: For the re-debuted sub-unit under Modhaus's strategy project ARTMS, see Odd Eye Circle. Odd Eye Circle (stylized as LOONA / ODD EYE CIRCLE or LOOΠΔ / ODD EYE CIRCLE; Hangul: 이달의 소녀 오드아이써클) is the second sub-unit of South Korean girl group 이달의 소녀, under BlockBerry Creative. The group made their debut on September 21, 2017 with the mini album "Mix & Match."