Prehistoric: the Unkillable Cockroach Spirit

I am a cockroach spirit, and this is my good friend, the dung beetle spirit, who is kindly inviting me to eat shit. I don't have any abilities, I just resist being beaten, no one can beat me to death. This is my villain, Tathagata, and my brother has always wanted to keep him in captivity and shit him and eat him every day. There is also my disciple Wukong who likes to take the Nine Turns Golden Pill and always wants to tie up the Supreme Being to be his cook. I'm so stressed.