It's a BL manga and the story shows about some of the population getting beast ears and other characteristics like having heat. The seme and the uke are neighbors. The uke has a crush on the seme which will cause the seme to have beast characteristics because being near someone who is madly in love with you will create such an effect I think(?)
I don't remember much about it and I also can't remember what was my keyword for it when I saved it in my bookmarks ಥ_ಥ
It's this one -
https://www.mangago.me/read-manga/kamikudaite_aio_oshiete/

I like stories where he/she jumps from 1 world/novel to another, could be BL or straight like seize my boyfriend, goddes creation system, cheating men must die, and etc. Please please pleaseee ╥﹏╥
I don't have a list but..
https://www.mangago.me/read-manga/i_have_to_be_a_great_villain/
https://www.mangago.me/read-manga/100_ways_to_heal_a_psychopath/
https://www.mangago.me/read-manga/sss_class_suicide_hunter/ (recent arcs, highly recom)
Game loading, but after the latest arc ended it never updated again. The novel is completely translated tho.
Thank you so much!!!m(_ _)m