Level 1
If the enemy wants to parry, he will be tumbled even more fiercely. (Get extra hard damage.)
Open Door: Skill Damage increases slightly. Breaking Defense inflicts the target with Open Door: The target will be knocked down if they use a skill in 5 seconds.
This skill can be used in air.
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.