Unable to get the incident from their date out of her head, Miku revisits the rules of the "I Love You Game" to confirm Yuukiya's true intentions . "You can do anything to make him feel excited . " But just how far is " anything" permissible ? They repeatedly use words and actions that make each other's hearts race , trying to find the line ...

I wonder if I'm not attractive as a girl ..." Miku worries about Yuukiya's indifferent attitude, so she casually confides in his sister, Wakana, who recommends shojo manga. There, Miku discovers something that the two of them "haven't done yet." That is ... ...a sleepover! As Miku's imagination runs wild, she remembers how they used to do that as a matter of course.