Honestly having read the raws theres really not much to say besides exactly what the image...

Honestly having read the raws theres really not much to say besides exactly what the images portray.
But I’ll give a brief brief summary from my hasty reading of it (by no means accurate, I couldn’t be bothered to check some words so its more a gist).
Due to the “we will get sick if wer apart curse” (dumbest plotline istg) blonde dude works hard at their relationship, but dark hair dude still thinks nothing will happen cuz blonde said “its impossible” at some point and he really took it to heart. Their mothers continue to message and call them to push them along, and they get closer anyway as expected. Then one day, blonde dude says to the other guy, should we do it? So they start getting into it, blonde tries to pull the “onii-san will look after you” in bed, but dark dude blushes then pulls a horny role reversal and makes blonde come (all blushing and aroused). Then dark dudes like can i put it in? Blonde guys like yeah. Dark hair dude whips his dick out and blonde dude almost has a heart attack at the size and hes like omg bro dude my guy, that light saber is NOT gonna fit! Dark hair dude tries anyway - as they do every freakin manga - and ofc no lube, no prep, it doesnt fit, and blondie cries “muri muri” (impossible!). Next day dark hair guy comes over with a stack of reading material for them to learn how to do it properly.
Next chap (4 I think? Man I really didn’t expect to be tested on my memory of it so quickly, but I could tell from the comments people wanted to know). Next chap, is when they actually penetrate, leading up to it is mostly foreplay, but of course to stretch out the plot, blonde gets distant for some reason or other (i think because he realised he’s in love? Idk i didnt care enough to pay attention, it was dumb), and avoids dark hair dude for a while till he snaps and corners him into telling him what is on his mind, which he admits, and dark hair dude is so overwhelmed he picks blonde dude up over his shoulder, takes him to their room, and they do the dirty deed finally. (Theres additional chap after the fact where dark hair dude leaves after they do it and blonde thinks hes been rejected so he stays with his baby face coworker for a while till dark hair dude saves the day, but I skimmed through that chap so i’m not sure the actual reasons).
So yeah, as I said, the pictures literally explain it all, the plot was ridiculously thin to begin with and it doesn’t thicken out by any means, but hope this helped a little!