we don’t get the beginning or end of the story but at least we get to know what happens...

Okay TLDR of the missing chapters
Setup: ABO world, shitty dad favors cocubine's son bullying real son (both Os), insert transmigrated business man here. So cheap dad and brother feed MC a drug to induce heat and toss him into the ML's bed because they want to see if he is faking being a B (he def is). ML manages to walk back out of the room and not blow his cover and the MC survives a heat that should have killed him without Alpha intervention. They form a team with the ML putting a very sexy magic item that will hurt him of he tries to betray (it is the chains you keep peeping under his clothes). They get sent to this empoverished town for disaster relief. They make schools and roads making this place awesome (despite interference). We are caught up now.

i ended up reading it on a different site and it was so so worth it !!! honestly such a great story. SO FUNNY, ML had me cackling with laughter!! definitely a new favorite of mine. but yeah the father and brother are the worst. (also you did a great job summarizing)

Thanks! I really enjoy this one I wish there was more of it.