ARTMS (Hangul: 아르테미스; Also known as ARTMS Strategy) is a five-member South Korean girl group formed by MODHAUS. It is composed of members HeeJin (희진), HaSeul (하슬), Kim Lip (김립), JinSoul (진솔), and Choerry (최리). Prior to the group's debut, all five members were introduced as members of 12-membered girl group LOONA (Hangul: 이달의 소녀) in 2016-2017 through the pre-debut project "Girl of the Month" under BlockBerry Creative. After the terminations of their contracts with the label throughout 2023, the five members signed exclusive contracts with MODHAUS, joining project group ARTMS.