[Event] Armstrong's Skill Guide (1 Day)

- Description: [Event] Armstrong's Skill Guide. Right-click to unlearn and learn skills anytime and anywhere for 1 day. This applies to all characters in a Family. After it expires, the last state of your skill set will be kept. - Note: Available from Lv. 57. ※ Once you obtain the item, it'll be available only for 7 days.

- Additional use requirements are not yet decoded; this is not a complete eligibility check.