Modhaus girl group ARTMS is returning soon with a new project, with many fans believing that it will mark a return to the LOONA lore. 

On January 18 KST, ARTMS unveiled a chilling teaser film titled 'X1'. In the teaser, member HaSeul wanders a familiar, snowy landscape in Iceland, finding the exterior of a crashed airplane. At the end of the film, a quick scene transition shows another ARTMS member in France, piquing curiosity. 

In addition to familiar landscapes from the group's LOONA days, the teaser film also featured a familiar soundtrack, an unreleased LOONA song known as "Burn". 

Many fans are now anticipating ARTMS's return to the LOONA lore with their next comeback, which, if soon, will signal new music from the girl group for the first time since their debut album, 'Dall', released in May of last year. 

In the meantime, you can compare ARTMS's 'X1' to LOONA's 'XIIX' teaser, below. 

SEE ALSO: ARTMS leaves 'D-DAY' messages to fans ahead of 'BURN' release