Medaka Kuroiwa is Impervious to My Charms, Volume 5
Mona and her friends go to an amusement park as part of a welcome party for Tomo! Since her feelings toward Medaka are throwing her for a loop, Mona is off her game for the entire duration of the trip. She later gets separated from the group. As she laments about how terrible her day has been, the one who comes to her rescue is none other than Medaka himself! Will Mona finally realize what makes her heart race whenever he's around?!