Spoiler ShowGuys, I do not believe in the theory that Oozora is a MoM. Given that a similar guy in a raincoat on the behavior similar to MoM, we saw at the end of the secret ending.
Although I have a very crazy theory that maybe Oozora is a student of Riku from the future sent to help the main characters in their search for Sora. Given the very large similarity between Oozora and Riku, I do not think that this is a simple coincidence.
What do you think about this?