I ALMOST FORGOT TO ANSWER THIS SORRY NHI!!
first of all: why not both. second of all: i think canon akito will be in between, maybe leans more towards sex masters bc he will do lots of ""research"" before having his first night with toya (who also did his own research but in mostly proper sites for sex ed... while akito won't hesitate to open hentai sites to learn how to make his aibou feel good). over time they will experiments a lot tho and akito won't mind being a sex master or a pathetic loser, as long as that's what toya wants... <3