If you were supposed to get an email from the forum but didn't (e.g. to verify your account for registration), email Wes at stararmy@gmail.com or talk to me on Discord for help. Sometimes the server hits our limit of emails we can send per hour.
May I suggest you use spell check, which is at the bottom of your posting bit, or firefox to spell check it? Also, I GREATLY suggest you start using shift.
Also, Flesh out some stuff. All those descriptive/anything that can be long things should be... say... 2-5 lines. Somewhere in that range. Never hurts to be descriptive, always hurts to not.
About his height - you put him down as 6'2" and as combat arms - but that's too tall to fit in the standard power armors so he'd have to be planetary infantry and right now there's no plots with planet-side campaigns (basically everyone is on starships). Just a heads up before I approve it.
Go to List of Notable Characters, hit 'Edit this Page' up at the top, and add '* [[Nakamura Kai]]' to the appropriate spot, alphabetically. Then, after you save the page, his name will be there as a red link. Click the link, hit 'Create this Page,' and paste his bio into the form that comes up. You'll need to do some editing to make it look right, but you can look at other characters' bios for examples; just go to them and hit 'Edit this Page' to see the formatting code. This is a pretty basic and simple example.