Level 1
Arrow Wind: Slightly increases skill damage. Skill changes to a 25-meter single target skill. Break Defense adds Arrow Rain and greatly increases Accuracy.
Disclaimer: Damage bonuses are currently calculated with 1000 melee, internal and ranged power, maxed weapon manual, 200 doll damage bonus, and 10 skill damage bonus per hit from treasure. In a future release of the website, you will have control over these parameters, and more, such as damage bonuses and weapon damage.