Did You Know?
Punpun’s horns are not actually devil horns but mean to resemble oxen horns? Asano was inspired by the Two Star Crossed Lovers in the Tanabata japanese legend! One of the characters in the story worked with oxens, and he was meant to portray Punpun.
I believe this was confirmed by Asano, I’ll leave a link if anyone is interested in reading about the Tanabata story that inspired Asano to write Punpun; it also follows the ideas of the milky way and Aikos and Punpuns relationship. Tanabata Punpun Story