Right away I noticed a couple things:
1: The link doesn't have anything saved in it, you need to hit save in the top middle, then click URL to get the link to paste here.
2: Killing Stroke is largely dependent on your VIT for damage. Also most pure Killing Stroke ninjas get very little, if any, DEX. That 4 AGI will do nothing for you.
A build would look more like: STR 99 VIT 99 This will leave you with 9 available stat points to place somewhere. Int 9 might be your best bet, tho with ninja mastery you'll do decently well with sp recovery.
http://irowiki.org/~...l?10yfabrFpF5fY This is a basic build you will want to work off of. Leaves you with 6 extra skill points.
Remember that with no dex you'll need to level exclusively with Throw Kunai since it has a 100% hit rate and it will require money to supply the various kunai.
