[Sharp Weapon, Projectile Weapon not detected, prerequisite not met!]
[Sharp Weapon, Flexible Sword not detected, prerequisite not met!]
...
When Kieran picked up the [Viper Dart] and [Viper Sword]'s skill books, both notifications popped up in his vision.
Although Viper Dart and Viper Sword were just the basics in Viper Sect's list of techniques, it was already an advanced skill for a player, [Viper Kick] might even be a high-rank skill.
When players enjoyed the conveniences that the system brought them, they needed to follow the system rules as well.
Perhaps a native could learn both techniques together but Kieran as a player couldn't, therefore he needed to follow the steps before he could get learn the skills.
Though it was nothing compared to the convenience that the system brought him such as [Living Rope Technique] and [Dormant Viper], after the prerequisites were met, he could already master the skills even if it was just a basic rank.