Hello there! looking for a manga in a college setting. I remember it was one of those mangas that has like 3 chapters dedicated to the main couple and then the last two extras are dedicated to the friend of the main couple.
That last one was ordered to show a new exchange student around right after being dumped by his gf. Turns out its an arabian prince and both of them like idol girl groups. Stuff happens and they end up doing it with the arabian (uke) using the cosplay of the idol they both like.

Wow, now I’m genuinely curious. I was hoping you were able to find it but it’s really difficult finding side stories. I went through many tags on here and on mangago as well but I couldn’t find it.
I’ll keep searching for it, though I’m surprised that it’s such a different story, yet it’s so hard to find.
Good luck! And sorry this wasn’t an answer.

Quote from z_goes_undercover

Wow, now I’m genuinely curious. I was hoping you were able to find it but it’s really difficult finding side stories. I went through many tags on here and on mangago as well but I couldn’t find it.
I’ll keep searching for it, though I’m surprised that it’s such a different story, yet it’s so hard t ...

I think the main story was about a couple where the uke was the assistent for a college professor who was also gay and liked teasing the couple and bordeline harass the uke... I'm not sure if I'm mixing mangas tho

was it an omegaverse? I think I just read this...

not an omega verse but if you got a title i can check it out, its been awhile so i might be forgetting details

FOUND IT FOUND TI

Toshishita Kareshi no Renai Kanriheki