Newlyweds Hina and Yuji move into an apartment managed by their kind landlord, Kita. Their friendly "meddlesomeness" soon crosses a line, and Kita begins sneaking into their apartment while they're away, folding their laundry, and sneaking in some sexy underwear. Meanwhile, Hina, who feels unsatisfied with her sex life, spends her days secretly masturbating next to her husband. Her frustration is soon discovered by her landlord...