bl manga, a character with unique teeth

This one matches the lighter hair and unique teeth but i don't think they had an unhealthy relationship so it might not be it

https://www.mangago.me/read-manga/omae_no_hou_ga_kawaii_kuseni/

https://www.mangago.me/read-manga/satoshi_and_kakeru/

This isn't the first in their series but Satoshi and Kakeru fit that description!

I got it backwards, sorry. Still an interesting read.

this isnt it unfortunately:(

this isnt it either, but ty!

Oof, thought that might be the case but </3
If u don't get any better answers maybe try looking thru https://www.mangago.me/tag/Shark%20teeth%20/ . It's only 3 pages so it shouldn't take long and it might be on there

https://www.mangago.me/read-manga/nakaseteyaruyo_yankee_kun/

thank you! it wasnt here either, i might give up on it or look on other sites tbh

Are you talking about 'The Summer Hikaru Died'? I just somehow got that in mind while reading your comment, it just weirdly fits the description in my mind though I'm not sure if they have an unhealthy relationship. Hope this helps anyway

hikaru does have crooked teeth so i see where ur coming from!! unfortunately i read this before that came out so its not it! thanks anyways