Makoto-chan, a pub girl, has a cheerful and energetic personality and has a super-sensitive nipple despite her small breasts. When she is tampered with, she immediately erects, hangs down and writhes and turns into a lascivious girl. And once the switch is turned on, he begins to provide excessive services in search of pleasure himself. A pub full of big breasts, a little girl struggles to become No. 1 with her erotic weapons!