Antique Key

Antique Key アンティーク鍵 Initial Max Rank Index No. Max Rank ★ Type Left Hand Cost 10 (Max 14) Worn By

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Lowers the Defense of all cards by 10% for 1 turn, but increases the Singing Power of all cards for 2 turns.

How to obtain:

Miku, KAITO, and the Clever Doll

Steam City
Hairstyle
Costume
Magical Item