Key Art 18 Challenge

Key Art #18 Challenge is a series of seven quests in Kingdom Hearts Unchained χ / Union χ, in which the Player is granted Key Art #18 Medals and a Trait Medal #35 for completing objectives. In the English version, it was available as a bonus for buying the Weekly Jewels Extravaganza from September 10 to 16, 2018 and from September 17 to 23, 2018.

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