i havent read it, but if i give this manga anything, its that they didnt fuck around with the title. No dodging around it, no whole paragraph of a title like a LN adaptation, straight to the point.
eh? i tho westershit something is romantically/sexually interest to our siblings... well whatever, i think this "broken" feelings only look so good in manga/anime
I am split between asking god to give every Japanese mangaka a sibling to reality check them or the opposite of making sure no managaka has a sibling just in case
One day your little sister may ask if you can do it to her today when she figured out that she ovulated recently. Fellow Onii-chans, please prepare for that possibility.