The MC is pretty like-able and pure, kinda sad that they add the need for him to make a harem... Having a harem whilst having a pure heart is really jarring and contradictory..
He has common sense, value women but not to the point of being a slave to them, value justice but not to the point of fanatic, can give honest smile even tho his heart is broken from Aria case, friendly and easy-going, not a fuck-every-women-that-likes-me... But then he wants a harem..???
Unless, maybe for him, a "Harem" is just being accompanied by female, trusted friends, with no physical intimate relationships with them? Only with Mear probably at later date when she's an adult and they're married..?