Is absolutely harem.
MC will "suffer the burden" to make womens happy.
We can read MC thoughts and see he isn't just a pervert in a nice situation, he wants to enjoy himself in the parallel world and make womens happy, as he understands they want a man.
For the womens around him he is putting himself on the line to do something all other dudes dislike and pushing his body for the low stamina other males have, for him is best reincarnation possible.
As said in the first chapter fashion evolved so that womens can make their assets clear easily, just in case a male passes or sees them on some video report.
Snake woman (is literally her surname) have her tits out, but for limits of the magazine the nipples are censored.
One thing, the drone MC is saying could never be realized in our world is totally possible.
A sphere with a camera and circuits and motors to manage everything, and isn't floating with some anti gravitational device, the 4 things sprouting from it are wings, we can only imagine how it moves but to me it looks like something that could be built, of course only one model would be pricey and mass production would require a big effort, but is not sci-fi.
The biggest problem would be the battery, that said we can build something with that size and function already, different shape, same job.