Re:zero cast reacts to undertale aus but the characters are replaced by them

includes undertale au memes, undertale au themes like assured prey, underverse clips and underverse amvs I'll give credits also why haven't anyone made a re zero inspired by an undertale au well there is one but it's only 1 chapter it's just "I saw a dream" and other shit then ofc they abandon their fanfic.Also the guy in the cover is Subaru x killer x horror x dust (scarf) anyways enjoy! (I forgot to mention that they are from WHDAAA after finishing arc 4)