[quote=@Teyao]
Dudes! I was looking throught the sheets an noticed that all the Illumiaire candidates (and [i]only[/i] the Illumiaire candidates) are in the Student Council, guess that is a unspoken requirement or something.
[/quote]
[quote]Student Council (A student may join the student council under the leadership and guidance of the Illuminaires.)[/quote]

Other students can have invited in with permission from the Illuminaires. I am guessing in context, Illuminaires are head boy and girl, and they can assign prefects to help them.

So for example for Tae, if he doesn't get Illuminaire, Fasha would be most likely to invite them to join based on her 'crush', for example.

[quote=@Shovel]
My character's theme is a barbarian wizard that spawns extra limbs.
[/quote]

Now we all know who to turn to when we need an extra hand!