Tatsuya Kageishi's mundane existence takes a dramatic turn when he encounters Aoi Tsubasa, a talented idol singer. Little did he know, the lively Maika Akabane in his class is actually the disguised Tsubasa! Facing a predicament, Maika reveals that to avoid an arranged marriage and idol retirement, she needs a boyfriend urgently. In a twist of fate, Tatsuya is roped into being her pretend beau. Their charade involves affectionate photo sessions, shared walks to school, and joyful outings to an amusement park. A covert wink at a concert hints at deeper connections. As Maika's layers unravel, Tatsuya realizes she's more than a mere prankster. Brace yourself for a captivating tale of a clandestine idol and her devoted otaku fan, embarking on a fabricated love affair.