Correct me if i am wrong but is it not suppose to have a bisexual tag or maybe tomgirl tag because he has some girlish looks and actually does fuck a girl even though you barely see her. Would be nice so this can be found with those tags even though its very subtle and not the intended audience.
I like it when the bottom/tomgirl still fucks girls because initially he is straight then sorta goes yaoi/bisexual midway while being a bottom for a guy or top.
Its a shame they always go for the you're either straight or gay and no inbetween in ero manga, they sometimes do but its super rare.