It may be anime, but before you decide how many points you get, you should decide on the genre of anime, as that will determine quite a bit.
As for the 29 thing - use 28, as the ability score uppage can be put into any stat, and upping stats beyond 14 or so requires at least two points.
I would recommend, however, that you use a different game system for this. If you have heard of BESM, I suggest that you use it. However, it is your game, and you can play it as you wish - just a recommendation. I am personally playing a sentient Mecha who is searching for a soul in an Outlaw Star type game.
As for this game... I may be interested in playing, still. If you require another person, I would be willing to join in. Although, I am uncertain of what character to play... Zel from Slayers Try would be interesting to try, although I'm not entirely sure if I could play him right (I've only ever seen 3 episodes).
The Shaman's casting ability is based off of Wisdom.