Responses

It depends on your definition of a harem? If it constitutes a bunch of females coming into the story, then yes. If it constitutes a bunch of females coming into the story due to plot reasons, but not necessarily falling obsessed with the MC and then performing multiple cliche incidents with the MC, then no.
Is this the generic harem manga? Or does it not have harem? CoZ if it doesn't have harem then i'll read it