Key Factor

An orange glow was glimmering around the book, a glow that only Kieran could see.

[Discovered skill book: Viper Kick]

[Prerequisite met, learn skill?]

"Yes!" Kieran answered without a second of doubt.

[Learned skill: Viper Kick]

[Name: Viper Kick (Basic)]

[Related Attributes: Strength, Agility, Constitution]

[Skill Type: Offense]

[Effect: Your leg muscles and joints could be slightly altered, slightly increasing the attack range or your kicks.]

[Consume: Stamina]

[Prerequisite: Hand-to-Hand Combat, Kick Combat (Master), Strength E+, Agility E+, Constitution E+]

[Remark: A set of kicking techniques that is infamous for its bewitching movements and catching your target off guards!]

...

A burning stream swirled around Kieran's legs. His brain was absorbing the knowledge of [Viper Kick] from the system and infusing it into every part of his body.

The stream finally stopped after a few seconds.

Kieran tested out a front kick with the new skill.

Tssss!