PURPOSE: A master and disciple management system within an online game and a providing method thereof are provided for gamers starting the online game to search a role model on the online game. CONSTITUTION: A log extractor(110) separates a character log from an activity log. A log analyzer(120) compares extracted character logs pair by pair and determines whether a corresponding character pair satisfies set conditions. A game service processor(130) divides a higher level character of two characters as a master and a lower level character as a disciple and respectively provides predetermined incentives to the master and the disciple.
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