サマーナイトミラクルミッション

The protagonist, a plain, gloomy, otaku-type second-year middle school girl,
ends up paired with the class favorite, Suou Natsuki, in a lottery for the summer-end forest school’s test-of-courage event.
Seizing this unparalleled opportunity, she lets her curiosity and playful fantasies run wild,
and prepares a mission to experience a romance that won’t end with just one summer…