Hi there. As the title says, I'm looking for this yaoi manga that read before and have forgotten the title.
The manga is about a human and a spirit(?). So the usual, the got together. (I'm sorry. The truth is I can't remember much. Lol) The spirit(?) got the human pregnant. (Though I say the male human pregnant, the truth is that kid just popped up and the spirit(?) said it's their child and that it's possible for the human and spirit to have children) Also the uke's older brother turned out to be his parent. That he is his son with the spirit he is currently with.
Sorry if this is confusing. I'm not good at explaining but I hope you can help me. Thank you!

Kudan no Kuroneko I believe.

It is! LOL. I switched the roles of the uke and seme! XD I guess I was remembering a different manga there. (Only the appearance) But the title you said is what I'm looking for! Thank you very much! 😀

Ahaha, no problem! You're welcome. 😀