Akihabara is known as a shining beacon for otaku culture everywhere. But in a not-to-distant future, that culture is on the decline due to a mysterious affliction causing widespread memory loss. As a result, Akihabara has lost its luster. However, in one of the few remaining otaku shops, Izumi and a handful of comrades hatch a plan to restore lost memories and return “Akiba” to its former glory.
曾经被称为御宅文化圣地的秋叶原现在却成了办公街，动画和漫画的记忆逐渐被人们遗忘，动漫商店逐渐关闭，数量越来越少。
能够给与作品世界支持的是人们心中对作品的“回忆”。但是“病毒”破坏了作品世界，使得大家对作品的记忆逐渐消失。
为了保护大家“重要的回忆”，在秋叶原角落的一家名为“兔小屋总店”的小店里有12位少女立志打倒病毒，重新夺回秋叶原往昔的欢乐。