Has potential, poor execution ..

I get that the author wanted to make like a harem 'who will the MC ends up with?' type of story. But including the best friend makes him the obvious choice since he's the only 'real person' in that world. So there's really no point the uke acting indecisive and coy especially when the seme is obviously interested in him..

I think a better story would be uke transported into the otome world alone, he gets to know the other potential partners, falls in love with one of them, have sex and then transported back into the real world. Uke gets sad that he'll never see seme again. Goes on with his life, and accidentally bump into the irl version of the seme on the street. And they both restart their relationship from there since the seme don't know him irl..