“Jealous Outburst? Two Lovebirds on a Boat: Tremble” “Shitto Bakuhatsu!? Bōto ueno oatsui futari Wanawana” (嫉妬爆発!?ボート上のお熱い二人 わなわな)

Naru and Keitaro decide to go out to celebrate the latest grades and while both are wondering whether it’s a date or not, a mysterious little girl appears.