Ghost Mountain Frog is a second short story of Hyperdimension Neptunia: Touhou Galaxy Project after Great Tomoyatalian Empire. The story is focus on Lady Vertimiki Niwa at the early day as Alpha Force's training who have accidently fall from Mt. Katsura which remember her deceased sister who drown in this place, at the same time were a group of boy who want to catch a frog have been lost in this mountain which lead a new urban legends.
