Yama no Susume Season 3 Episode 13 English Subbed Episode Title:It's a Secret, Right?.Episode Description:Tasked with choosing a present for Hinata's birthday, Aoi has trouble figuring out what Hinata would like as she doesn't know much about her. After Aoi inadvertently reveals the surprise, Hinata explains that their friendship is fun because they can learn about each other, and they buy a present together.