This is a oyakoshimaidon harem manga, so it is weird that the male friends of the MC are relevant to the plot as just good bros, because it is not even like he needs wingmen, he is just a rare harem protagonist with friends that keep showing up
I remember another manga recently about a monster girl harem decided that they wanted to pay more attention to the rest of the male cast, but since the MC was a loner they had to try to redeem the previous arc antagonist, and then introduce a brainwashing rapist and exile the MC, just so that the girls would have to cooperate with the other 2 dudes in order to clear the reputation of the MC, it is a mess
This series also has its sus moments, like how the sisters and mom are magnets for getting assaulted, but at least the author doesn't has to write himself into a hole if they want to show that the MC has a support network outside his harem