rAmEn's feed

I'm looking for this BL Manhwa that I remember checking out once, but I can't remember the name of it. I believe it had something to do with Espers (or something supernatural) and both the ML and MC were in school/training. I can't remember if random "pairing" was aloud, but I do remember that they had this whole system. I'm pretty sure it was some kind of Omegaverse, Supernatural, Yaoi, I just cannot find it :')

It would be a lot of help if anyone knew!