She looks like one of the girls from the anime Yuru-Camp (or Laid-Back Camp). So I'd like to imagine that the character grew up, kept her love for camping, found a boyfriend, and developed a kinky fetish along the way.
Ooh, Tsundere Vanilla goodness!
Hmm...Naked jacket? I like it. Also, she pitched a tent so that he would enter the tent to...pitch a tent of his own?
I must say, I found her reactions throughout pretty adorable. And that facial expression of hers at the end that she used to provoke him into pushing her down...I feel like her not telling him what's going on and goading him into making her talk is going to be the norm in their relationship from now on.
Also, always nice to see a 'To be Continued' and know that a sequel will one day arrive.