This is manga is the ultimate cuck soy boy otaku neet beta mangaka's dream. Though I gotta say it's not a bad skill, turning any female living creature as his sex and battle slave.
Someone linked the novel earlier, and according to ch2 and ch3 (didn't read more of that, I didn't want to spoil the manga for myself), Nekoyama is (was?) the blonde guy's girlfriend. Altough they didn't do anything together.
But yeah the correct term would be netori. Probably.
@Lanfear
Because it's not a self-insert power fantasy if you don't fug all the girls that'd never give you the time of day normally. You have the highest level taste tho'.
@Rekka
But it's fun to point at things and say, "Wow, what a piece of shit."