Wow, the reviews seem to underscore some sort of VN gang war here -- from 1-star to 5-star and back again... I really think neither camp is valid.
A one-star is just stupid, considering the rendering, writing and such. Just silly, stop it.
And 5-star, come on... that's for masterpieces, IMO, which this, however nicely wrought, is not.
So. Netorare? Netorase? Netori? My personal preference, if such infidelity must be done, is Netori, since I'm selfish, and I'm a girl that likes to see my MC "avatar" get his (or hers). But whoa nellie, it seems that I have dipped my foot into the wacky river of NTR, wherein ALL emotional bets are off. So, yeah.
The basic trope of "stumbling upon" sex opportunities while supposedly tutoring pre-teen boys is pretty eeky, and the bonus of "maid-sex" was blaaah --but hey, this is PORN, and some cultures ADORE maid-sex so shuttup!! Where there's a willy there's a way, wight?
And I did like the Accidental-touristy nature of the MC, and the yearnings of the LI/married babygirls, with or without youngun's. Peace-out.