アルカナハート
is taciturn and quiet. An orphan in Moscow, she joined a team of Spirit Investigators and received training at a young age. When the organization was cutting back on personnel, she took the opportunity to leave and traveled the world as a Freelance Spirit Specialist. At first, Zenia has no memory of her previous life, but in "Arcana Heart 3" she learns that her real name is , and she is Lieselotte's older sister. Her Arcana is Almacia, the Arcana of Ice, a globetrotting penguin which became a higher being after years of experiences.