help??

okay so umm I’m looking for this manga. I don’t remember to much abt it but it’s OBA (or ABO/Omegaverse) and there’s this omega who like has a child (I think?) and is discriminated against bcos he’s an omega, blah blah whatever. Anyway he becomes a janitor at a school and some highschool kid is like “omg ur my fated pair!” And I very vividly remember this one scene where the omega goes into heat and the alpha protects him and I don’t care abt the rest of the manga I just want 2 see that scene again lolol