Finished Novels Guaranteed: 1v1, HE 

BG. Series with younger brothers as male leads. either it's a stepbrother, half-brother or bio brother (though I prefer the first two way more).... more>>

If there is a younger brother ML but he is non-virg*n, a playboy or scum, I wouldn't put it down here. I prefer cute virg*n younger brother or the obsessive yandere younger brother trope.

Manga with younger brother ML that I like: Binetsu Kuukan. Game with younger brother ML that I like: Shun from Watajuu. <<less

(CN-only) it’s either there’s a lack of these kinds of lists or i’m blind every time i look for one, but here’s some good ol' sibling love. just siblings looking out for each other, in whatever form it may be.... more>>

its hard to find good sibling stories where the siblings are consistently one of the main focuses, so some in of these stories it is noted that the siblings "come and go".

※ all novels listed i have read completely through translation or MTL unless stated otherwise <<less