Responses
Apart from the black haired guy everything sounds like this one
https://www.mangago.me/read-manga/nyotaika_shita_boku_wo_kishi_sama_tachi_ga_nerattemasu/
Thank you!!!
You're right btw, I just misremembered the black hair (≧∀≦)
Welcome ヾ(❀╹◡╹)ﾉ~
I forgot the title of this manga,
It is a smut, historical fantasy with polyamory.
2 seme loving 1uke
The uke was cursed to turn into a girl every night (I think?) - usually wears a black robe
His lovers was blond guy and black haired guy who are knights (not sure if both or one of them)
The story was about finding who cursed him and how to make him normal again.
Thank you!