Love how cool and boss she looks on the cover page when in fact...
Wouldn't this have been even more fun if he actually was a useless bum instead of a straight man and got shamed into tempering her each time because of her behavior?
@SpaceHina As far as I know, this is a pre-serialization of the official manga, which you can read here https://mangadex.org/title/25264/danshi-koukousei-wo-yashinaitai-onee-san-no-hanashi