I would like to find a story I read a long time ago with a similar vibe to this one. I don't remember specifics, but they spent a lot of time in either a friends house or shop, where the friend was not human, and had several non-human pets/slaves. The female lead was not aware that she was the wife of the male lead (I don't remember if it was amnesia or reincarnation)
SPOILERS.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Did the blue knights forget they had horses when they took a 3 hour walking tour to find the dwarf? When she woke up during the demon lords kiss, she said it was her first kiss, but it wasn't! At first she claimed she was a college student who needed to find a job, but then she claimed she had a job, then she claimed she was still in college. I'm still rolling on the floor laughing about all that "boyfriend/girlfriend" thing.
They were climbing on that trip so they obviously would have trouble taking horses with them: http://www.mangago.me/read-manga/isekai_de_kuro_no_iyashi_te_tte_yobarete_imasu/mf/c002/12/
The little brother is a bro-con? He could have killed the little birdie, cause big bro didn't pay enough attention to his little brother . . . .
And now I cannot stop singing SJ's "OPPA OPPA!!"