I'm asking if there's anyone who's familiar with harem-related stories?
Yeah, when i was younger i watched this anime caleld Asu No Yoichi, It's about a samurai who goes to the a town to learn more about a wind sword art, with 6-7 sisters he's going to go live with I can remember some of their names: Kakami? Ibuke?
Anyways they develops feelings for him and teach him how to deal with everyday life as samurai in the modern day(Best i can do without spoiling it)