This feels like a oneshot. It is a manga so the development over 5 chapters is equivalent to a whole 50 chapters in other stories so there's that.
There is nothing special or unique about this story and the situation they are in. But that in itself was nice. The seme who used to be a nerd wearing thick glasses with an obsession for the constellations meet the bubbly and extroverted uke who is open and wants to learn more about his interest. The uke went abroad then the seme learned that he liked him all along, flash forward to the present they are now high-schoolers probably(?) and the seme doesn't recognise him rightaway nor does the uke. However, when the uke went on a montage about the stars, the seme's interest was piqued and he asked him how he came to know that. Then uke says it's because of his name and something 'seven' so the seme is aware that he was his childhood friend whom he harboured an unrequited love towards, the seme is delighted then confesses he likes him and attempts to kiss him. The uke runs away then finds out that seme is his roommate and is woken up by a kiss. Now this whole interaction is bizzare to say the least but I have learnt not to ask questions especially in manga and in particular yaoi or shounen-ai. The seme is elated and is super touchy then the uke runs off after he cummed with seme's hands then blah blah figures out he likes him too. Then searches for him only to find out that no-one has seen him recently then he finds him in the rooftop although it said 'unauthorised'. The seme's justification was that it was a perk enjoyed by an honour student. That's not true irl btw..no-one can have access to the rooftop, I have no idea why it is a thing in animes and mangas. Then both confess. Now comes the conflict..people assume that seme is dating a girl which is not true. But uke is jealous because now the once nerdy and geeky seme is no more, what is now in that place is a confident, extroverted and good-looking guy who is very popular with the girls. The uke becomes insecure (mood) and questions their whole relationship and runs away to the park where they met and is in a swing. The seme catches him then they reconcile.
They now have their first date and it has to do with stars. An exhibition of some sort is what I gather from it, the seme initiates intimacy by touching his thighs then rubbing his crotch, the uke swats his hands away then the seme sulks. As if hit by an Eureka of some sort, the uke retaliates by doing the same thing. The exhibition now ends. Then the seme grabs his hand and wants to go home since he couldn't hold himself back anymore and wants to give sex. They have sex..although the seme was gentle, something I can't say for other semes in this genre.
~THE END~
My Roommate Obsesses Over Me