1x6 - Hana Nochi Hare : HanaDan Next Season

Oto and Tenma encounter Haruto and Megumi, while on a date at an amusement park. Now a double date, it becomes increasingly awkward. Tenma later alludes to being jealous of Haruto. Oto realizes she has to settle things with Haruto, which she does. He is devastated by rejection.