Ep. 7: Sally derrota Frederica e o duo busca chaves de cristal para evoluir seus monstros.

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After Sally beats Frederica, who introduces her own summon monster Notes, the details of the eighth event are announced, revealing it to be an individual event like the first one. Afterwards, Maple and Sally go walking around the plains where they discover a crystal that serves as one of three keys. After Sally finds a stone tablet underwater depicting what appears to be an event map, Kanade gives them some information leading her and Maple to the bosses that hold the remaining crystal keys. Upon taking the keys to some ruins, the pair are transported to a tranquil place containing a magical spring that evolves Syrup and Oboro into new forms. (Source: Wikipedia)