Ep. 15: Kaede remembers middle school friend Yuuka after finding an old raincoat
Aired on October 22, 2014

15
Kaede discovers a raincoat in her closet and begins to remember her middle school friend Yuuka. Yuuka frequently expressed concern regarding Kaede's habit of climbing mountains. This recollection highlights the past relationship between the two characters and Yuuka's protective attitude toward Kaede's dangerous hobby. The memory serves as a nostalgic reflection on their shared history during their school years.
Episodes
- Ep. 11 · Hinata and Kokona reach the summit for sunrise while Aoi watches from the 8th station
- Ep. 12 · Aoi walks up Mt. Ternran after receiving postcards from Hinata and Kokona
- Ep. 13 · Aoi and Hinata reminisce about a childhood firefly watching trip where a mysterious insect guided them home.
- Ep. 14 · Hinata and Father Invite Aoi's Mother to Climb Mount Kirigamine
- Ep. 15 · Kaede remembers middle school friend Yuuka after finding an old raincoat
- Ep. 16 · Aoi faces anxiety over the cable car ride while climbing Mount Tanigawa due to her fear of heights.
- Ep. 17 · Hinata Takes Everyone to Shinrin Park to Help Aoi Overcome Her Fear of Heights
- Ep. 18 · Aoi seeks part-time employment at a cake shop to fund her mountaineering expenses.
- Ep. 19 · Aoi Realizes She Has Neglected Her Summer Homework