After witnessing Maina Ichii's captivating performance at a local concert and receiving a flyer from the idol herself, Eripiyo is smitten and resolves to dedicate herself to supporting the shy star. Embracing her distinctive red tracksuit and unwavering charm, Eripiyo becomes Maina's devoted and unparalleled fan. Through every show and fan gathering, Eripiyo stands by Maina's side, undeterred by challenges like injuries or Maina's distant demeanor. Her steadfast pursuit? To witness her cherished idol grace the renowned Budoukan stage, no matter the obstacles along the way.