Responses
If I remember correctly, I think it's this.
https://www.mangago.me/read-manga/high_pulse/
THAT'S TRUE!! THANK YOU MUCH
I'm looking for this title, it's bl, school life and omegavers, the mc has a heart disease if I'm not mistaken and he met ml when he was little in the hospital, when they get their second traits mc hides that he is omega