mostly to be feared

Sans the skeleton or as they call him at times sans wingding, the most feared monster in the underground, the kings loyal servant, heaven's judge, the most powerful monster in all the underground, a force to be reckoned with, a god in the form of a monster, everyone know these names everyone but his brother, his was not called that because of his father, no one care about the royal scientist, they only feared sans but his brother did not know to him sans was a measly one HP monster and sans had planed to keep it that way, that until....
cover not mine