Sinopsis
With Aoi's mother still cautious about her climbing up mountains again, Hinata and her father suggest that she invite her to climb Mount Kirigamine with them. Whilst climbing the mountain, Aoi is reminded of the mountain she climbed with Hinata when they were younger, though neither can remember which mountain it was. Hinata's father later reveals that mountain was Mount Tanigawa, leaving the girls excited to try and climb it once more..LET'S GO！登山少女 Yama no Susume 前进吧！登山少女