@migh " the fact that the girl is the brothers wife is completely useless"
I mean, despite only being an idea to us readers, he's the central motivation to every character in the series so far. Far from just an excuse for pseudo-NTR.
But sure, this isn't Kaguya nor Bokuben. This is a comedy/sports manga more comparable to Shougeki no Soma if anything. Expect lots of over the top absurd humor, and expect a lot of lewd. If that's not for you, then that's how it is.