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So according to here, Argel plays some role with Fighter Skills.
Someone with Rank Novice Knuckle Mastery and no other Fighter Skills try talking to him?
That's Korea-only. Other servers instead have the Rush of Love quest chain.
Doesn't hurt to try though.
Btw in KR, did the quests come to players or...?
I had rB Knuckle Mastery when I talked to him, nothing of particular importance. An empty shop, no quests, lame keyword responses, and a 98% repair rate.
And what do you mean? You already know how the quests come from that link, don't you?