When you use this skill, your character starts running straight forward. You cannot change direction of where he is running while running.
You can stop using Running skill by simply using it again (no SP cost to stop), or use another skill, or run into the wall.
When you use this skill (At least at level 7) and then immediately stop, then there will be +10 STR buff and a +(10*SkillLV)% damage to the Kick skills for 150 seconds if you are un-armed (only works on TK and SG, not SL).
When you do not have any weapons equipped, the kicking skill damage will increase by +10 per level of this skill, for maximum of +100.

Enables the caster to run with incredible speed.
At levels 7 and above, this skill endows the caster with the Spurt status, which will temporarily increase STR for 150 seconds, if the caster stops running and is barehanded.
Spurt status is canceled if the caster equips a weapon.
Each level of the Run skill increases its caster's barehanded damage by +10.