Hirotaka and Narumi go on a date at an amusement park, but this date has a special penalty attached in that anyone who says anything nerd-related has to pay 500 yen to the other party each time. While going on a horror ride together, Narumi's fear accidentally causes her to carelessly pair up with Kabakura instead, while Hirotaka goes on with Koyanagi, as the two are also on a date here coincidentally. Koyanagi assures Hirotaka that it is okay to move at their own pace in a relationship after he reveals how he is worried if Narumi really likes to spend time with him...