AtHeart (앳하트) is a 7-member K-Pop girl group under Titan Content. The group consists of Michi, Arin, Katelyn, Bome, Seohyeon, Aurora, and Nahyun. The group released their pre-debut single “GOODGIRL ATHEART” on March 14, 2025. They officially debuted on August 13, 2025 with their album Plot Twist.[1]