Do you want to compare Oya with Mantis? Discover the powers, weakness & weapons of Oya and Mantis from Oya Biography and Mantis Biography. Find out all about Oya and Mantis.# Check out how is Oya unique and distinct from Mantis. Discover their love interest, sidekicks, family tree and the movies and games list in which Oya and Mantis have appeared. Find out everything about them here!