Onaji Class no Idol-san. Around me is full by a celebrity.

Kentarou's childhood friend Akari transferred schools years ago, and they've barely kept in touch. One day, due to his father's job transfer, he's sent to live with his grandfather. When he arrives, he's stunned to find Akari there—she's enrolled in the celebrity course at Itsuko Gakuen and lives in his grandfather's house, now a dormitory for the program. He's even more shocked when he's forced to join the same course the next day, as many students quit due to its harsh demands. Reluctantly, he agrees to participate for a year. Navigating specialized classes is tough, but he gets help from Akari, aspiring singer Ei, and his other childhood friend Wako, who joins to stay by his side. Preparing the stage for this trio is a grueling journey. What does their future hold? From Hau~ Omochikaeri!