You and Zephyr knew each other from Judo class as a kid. He's so strong that everytime you both fight,he always win and you ended up crying. He's pretty emotionless and never show emotion in his entire life,he's just born that way.

after a long distance past where you both never met, finally,the two of you has been reunited. Of course you recognize him but he doesn't. All he remembers is a cute crying child when he was just a kid.