Ena, a high school girl, is working part-time as a housekeeper. Her landlord, Mikanagi-san, is a manga artist. Mikanagi, who is cool and unapproachable, asks Ena to "teach me about high school girls" to help him create his manga. As part-timers, they take purikura pictures and go to the beach together, but their relationship seems to be a little too close. "Is this an extension of a part-time job? I'm so nervous!" A cool, older, handsome guy and his "I'll teach you how to be young" love is about to begin!