Shy and plain Rinko Souma wants nothing more than to love and be loved in return. However, her popular and handsome classmate Souta Hisakawa is so far out of her league that her fantasies full of him are more delusional than romantic. Nonetheless, when a shady video store owner suggests that she "rent" the heart of her crush for a limited time, she jumps at the chance to turn her hopeless dreams into reality. For three days and two nights, Rinko lives out a fairytale relationship. But as the deadline to return her rental ominously draws near, she starts to consider how she can retain her claim to Hisakawa's heart indefinitely. [Written by MAL Rewrite]