brosan

i figured it out

every character in undertale represents a stereotypical family member

toriel - mom

asgore - dad

papyrus - big bro

sans - little bro

napstablook - sad cousin

alphys - weird cousin

muffet - that one aunt who’s always calling asking for you to lend her some money like fuck OFF aunt eileen, seriously

mettaton - robot

undyne - vriska