Asumi-chan's got a problem. Well, two. First off, she's been desperately scouring the city in search of her childhood crush, Mai, who she knows works in a brothel. Now her search has dropped a whole new problem into her lap: she's gone to so many brothels she's broke! Fortunately, a friend from university, Nanao, has offered her a live-in job. But even then, work is only a temporary distraction from the ache Asumi feels to continue her journey of sexual experimentation.