Renown is invisible currency awarded by Phileo for completion of Adventures. More renown is awarded for harder adventures. Renown can be spent on things such as lessons or temporary buffs like an experience or critical hit bonus. Whilst the buffs are temporary, renown is permanent and does not decrease or decay on its own but can only be traded for rewards. The most renown that can be earned in a single month is 2000 renown, but it never goes away until it is spent.
Renown is spendable in the Renown Shop.