if 你 could make any organization member your slave for a day...

Axel. To help me get a girl

Lexaeus.
He could bitch-slap all of the atheists in my school who are trying to make me convert.

Axel.The cool factor could only be riveled 由 the bugging him factor.

Xemnas naturally, he has complete control over the rest of the group, which I could then force him and them to sign a paper, that he will write up and do all of the legal work on, that says they will forever be loyal to me!

>:3

Either Saïx, Vexen 或者 Xigbar.

Since I’m still a Minor and lack the necessary..Tools, BDSM is obviously out of the 问题 (yeah, I went there).
So..God, who am I kidding; I’m the complete opposite of a Demanding Person, let alone Aggressive!

..I’ll probably just politely ask if they want to play "Portal" with me..Or if they can help me with my Homework. ; n ; I’ll be a pathetic Master, I’m too nice.

Not exactly 'slave', but 'hangin-with-mah-bro-time'.
Axel, duh.