I don't think it's him on the cover. He doesn't have those noticeable eyelashes or whatever below his eyes like the guy on the cover does. I'm betting that the guy on the cover is either related to Reina or the gang somehow meets with genderbent versions of themselves.
Why the hell are you people complaining? Are you even lesbians/bi or are you just dudes that fetishize them? Stop fucking reading this story while it's still in progress if all you do is complain every chapter. Obviously you don't know how it feels like to be gay while living in a place where...