Idea: The Earth that Subaru came from once had Demihumans, but they intermixed with each other and humans in Antiquity to the point at which any categorization between them and humans is completely meaningless. A small amount of this world's modern human's DNA is made of demihuman DNA, similar to how Nearandthals contribute about 1-5% of DNA to human groups that left Africa. Anyway, this is so that Subaru(and other Isekai characters) can have some amount of usually separate Demihuman traits to confuse everyone when he's summoned. Your choice on the traits to give him.
For this, most visible Demihuman traits are recessive and the traits should appear to come up randomly thanks to how chaotic Genetics can be. Various usually together Demihuman traits can be inherited separately, but they tend to be together. Probably have him take a DNA test before coming and having a couple very low percent Demihuman categories and like 3% miscellaneous, probably list them off to Emilia and continuously being confused by the term "Demihuman". Would expect a gradient on the amount of various traits over various areas, but that being far more than a trend then a rule(occasionally seeing trait appear in area it's least common in). Hand-wave the modern world existing.
He would have the traits from the beginning and they would be random, and the traits aren't exclusively animal traits, thanks to not all Demihumans being animal-people(ex. Oni, elves, evil eye tribe). Was thinking they'd be ones that aren't obvious and/or just happen to be under his clothing.
YOU ARE READING
Some Re:Zero fanfic ideas, crossover mostly
FanfictionThis was originally a big Sonic X Re:Zero fanfic idea, adding other ideas here that I felt were worth keeping. Ideas originally posted to Reddit by me(will update every so often), spoilers for stuff beyond S2 will be here, but after a warning that c...
