Most centipedes represent some annoying or worrying things in life.
Blood red means impatience, enthusiasm and vitality.
This strange man, I think, is the one you want to appear in your life and help you.
His sword represents his ability. Cutting off the centipede is to solve your troubles.
He wants to be a leader, which means you want him to be a man with a sense of mind and direction.
You want a tail, which means you are willing to follow and share his wishes.
Eating centipedes means completely eliminating troubles and absorbing each other's emotional strength.