Kimi Janakya Dame Na Dorei Shoujo

Kimi Janakya Dame Na Dorei Shoujo summary:

I protected a slave girl from another world. She wants to do everything for me, but she doesn't understand when I tell her that there are no slaves in modern Japan. The common sense and concern for each other is confusing, but an embarrassing and fun life living together begins in this cross-cultural romantic comedy! But, for her, why does it have to be me?