Maybe this one
https://www.mangago.me/read-manga/love_monster/
OH MY GOD THANK GOD THANK GOD!!!!!!
this was one of the first mangas I ever read. One time at a Christmas party I was talking with my older cousin about manga. She has never heard of it but she was interested in what mangas were. She asked me what the first manga I read was and I told her thinking she’d never remember it but she became a little too interested and was saying how she will read it too. THANK GOD I UNKNOWINGLY TOLD HER THE WRONG MANGA NOT THE SMUT BIRD ONE LMAO I told her “black bird” I have been cringing ever since because she never spoke of it but I just know she looked it up and all this time I’m imagining she read that smut shoujo bird monster rape manga but I somehow didn’t know it wasn’t called black bird until now!!!! Thank you for the peace of mind. I’m gonna reread this now I wanna feel like a little girl again stumbling onto something new and forbidden which opened me up to a life of stories and enjoyment.
Does anyone remember this old manga where the main character was a girl with blonde pigtails and the male lead was dark hair and tall, I think he was the schools council president thing and it was a school full of monsters. I think he was a crow and she was a white crow. They were also childhood friends and I think was sexual too.