Huh, didn't think this was going to get a continuation.
That last line sounds kinda yandere.
Agreed. I'm fond of the whole "overprotective sibling" trope but that was definitely slipping into yandere territory a little.
Ruby is a huge fan of the little sister novels by the author in "Imouto Sae Ireba Ii" so that's just a normal, everyday thing for a little sister to say.
The 2 makes it pretty obvious but it could still use the Sequel tag
It kind of seems like there's not many fans of this incest ship... Weird, like everywhere i go to with incest tags, peopz are going CRAZY for the incest... ANYWAYS, LOVE Dia x Ruby