青春×机关枪

立花萤（小松未可子 配音）是一位拥有着强烈正义感的少女。某日，她搬入了月城庄公寓，准备开始一个人的生活。让住在202室的萤没有想到的是，自己隔壁竟然住了一个名叫松岗正宗（前野智昭 配音）的牛郎，这个举止轻浮油腔滑调的男人没有给萤留下什么好印象。 　　矢岛鼎（堀江由衣 配音） 是萤唯一的朋友，某日，鼎告诉萤，自己被一个牛郎骗光了所有的积蓄，这让萤愤愤不平。萤冲到了牛郎店想要找到欺骗鼎的那个牛郎，为好友讨回公道，然而，令萤震惊的是，这个牛郎不是别人，正是自己的邻居松岗。而面对萤的挑衅，松岗竟然提出要用枪来一决胜负，就这样，萤被卷入了一个你争我斗的生存游戏之中。Hotaru Tachibana, a female high school student, is often mistaken for a boy. She finds herself pretending to be a boy while playing Survival Games with Masamune Matsuoka, who is a host, and Tohru Yukimura, who is an ero-manga artist. Due to certain events, she cannot reveal that shes a girl. The story progresses as she learns to love the sport while battling with her fears of her closest friends finding out shes lying about her gender. This story begins very similarly to Ouran High School Host Club, but after the second or third episode it strays, becoming its own unique story.