ok, seriously what is it with the Japanese and this whole fascination with a trap in a cat-girl (cat-boy!?!) cosplay? cause I swear EVERY series that has a trap as part of the main cast either has that as an omake...or somehow worked into the canon story...
@InsaneInsomniac u know how if u put cat ears on a girl she gets cuter?, the same principle aplies to short guys or shotas but most of the time they get dog ears (but cat ears like here are also used pretty often), now if the boy is older they get a different type of ears like if its a 20 something buff guy they get tiger ears or wolf ears, while 17-20 shoujo kind of guys also get cat ears being the white and balck ears the most common ones to signify ''pure'' and ''dangerous''( or mistrious) kinda guys respectively.
TL;DR: animal ears go well in short or shota guys, same principle for girls