mako nakano lives alone due to her husband's business trip. her neighbor, yoshioka, is overly caring. one day, when mako is sick with a cold, yoshioka brings her food and takes care of her. after recovering, mako wants to thank yoshioka and seduces him. losing his reason to mako's temptation, they have sex. the next day, mako plans to seduce him again, wearing a see-through skirt and lures him into her home for more sex.