3+4!

💫Starring K-pop girl group AtHeart!💫 In 2026, Na-hyun of the K-pop girl group AtHeart is set to remake the song "3!4!". But after calling a mysterious number from a pager message, she is suddenly transported back to 1996, where she meets the "Samsoon Girls," a group of girls chasing their dream of debut. Separated by 30 years but connected by the same song and the same dream, Na-hyun must navigate between the past and the present. Will her choices change the future of both the Samsoon Girls and AtHeart?