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King Riser
キングライザー · Key item
A gun that can summon King class too
Versions: Aka no Sho, Kuro no Sho, Shiro no Sho
Other ways to get it
Underground Prison
Given in the story in the castle jail.
Frost Town, Gate Town, Underground Prison
Given in the story when you escape the castle jail.
Hinnom Town
Given in the story.