@kronix
@Lukimki
Pretty sure this is what you're talking about.
Makikomarete Isekai Teni suru Yatsu wa, Taitei Cheat
https://mangadex.org/title/22280/makikomarete-isekai-teni-suru-yatsu-wa-taitei-cheat
Chapter 15 was the spirit queen and the ending was uhhh something special.