Rosa (ローザ Rōza?), full name Rosen Kleine (ローゼン・クライネ Rōzen Kuraine?), is the protagonist from the digital comic Walküre no Densetsu Gaiden: Rosa no Bōken, a cheerful girl that admires Valkyrie. The Great Goddess gave her the task to go after the monster Tōrushin that escaped from heaven and hid in a floating island from Marvel Land.

Rosa also has a short appearance in the ending of the Walküre no Bōken: Toki no Kagi Densetsu remake from Namco Anthology 2.

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