Aoi spends most days alone indoors, but an old friend has arrived to make good on a promise.

With the help of Hinata's dad, the girls familiarize themselves with essential climbing gear.

Hinata convinces Aoi they should start with a small mountain and work their way up to the big ones.

Hinata and Aoi have a cook-off while camping.

Aoi meets a girl from school who is crazy about backpacking.

It's Aoi's turn to pick the mountain, so she calls on her new friend to help.