Weissis a character in the Arcana Heart 3 series; representing it as the mascot for the series.
Weiss was also involved in Drexler the same way Sharl was. But after the organization was overthrown by Petra, Weiss came with her in order to be rehabilitated back into society. Weiss knows nothing about the real world, unfortunately, and is having trouble fitting in. Her expressions seldom change, but she cares deeply for her new friends and comrades. She believes Scharl may have something to do with the recent unusual events and has gathered the courage to investigate situation on her own.
- She is voiced by Miyuki Sawashiro, who also voiced Carl Clover, Canaan, Saeko Busujima, Ivy, Perrine H. Clostermann, Shinku and Nana Gray.
- One of her supers lets her ride one of her expanded-sized swords to attack her opponent, reminding many of Jin Kisaragi "surfing" on sword-shaped ice blocks. Her own theme, "White Valkyria", also sounds like Jin's "Lust SIN".
- Her design is also similar to Dark Saber, specializes in summoning blades out of thin air, and "Extend Force Critical Heart" brings to mind the legendary "Unlimited Blade Works".
- One of her alternate colors make her resemble Homura Akemi.