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've always rooted for Corey!!! I have a 2nd ML syndrome and he just gives off those vibes. The gentle, caring male lead. My bias breaker is definitely Lyves huhu his whole vibe is 707 T^T. Then, might give Swan a chance 'cuz this bro waiting a long time to see someone who won't remember him ╥﹏╥!!!!
Last, would be Hylee... considered him a bit because I love his mom :'((( and he can be kind and mature at times after he grew up.
*waited