[Graystripe2000]

As the title suggests, Bandai Namco trademarked Xiaomu.
http://www.dualshockers.com/2015/07/12/namco-x-capcom-protagonist-xiaomu-trademarked-by-bandai-namco/
Maybe it's for something related to a western special edition of Project x Zone 2, assuming there is one?

[Randomizer]

You should have posted this in the "PROJECT X ZONE 2: BRAVE NEW WORLD FOR 3DS BANDAI NAMCO GAMES" thread instead of making it another topic though.

Xiaomu gets trademarked but not Reiji. Hmm 

[CacmanZero]

Super Robot Taisen OG Saga DS wiki the protagonist Reiji and Xiaomu cameo appearances video game consoles thoughts.