CORTIS fans finally have a name, and it arrives with all the symbolism their fandom deserves. On November 25, 2025, BIGHIT MUSIC announced through Weverse that the official fan club name is COER. The selection came after a massive contest last September that gathered more than nineteen thousand submissions from fans around the world.
After careful review by both the staff and the members, they chose COER for its perfect blend of meaning and identity. The fandom name mixes the idea of standing with CORTIS while reminding everyone that the fans are the “heart” or “core” behind the group. The explanation makes it even sweeter: COER combines COR from CORTIS with the ending ER, which represents those who stand together. It also plays on the idea of core representing the deepest and most passionate fans. The announcement highlights that COER symbolizes the driving force behind CORTIS and the fans who are ready to color outside the lines with them.
This reveal also marks an emotional milestone. BIGHIT thanked fans for their massive support during the first one hundred days since CORTIS made their debut. With COER now established as a fandom, the group and their fans officially enter a new chapter that’s about identity and unity with creative energy.