TV-Series
Description
Ristarte, known as Rista, is a Goddess of Healing in the unified spirit world. Her duty involves summoning heroes to rescue endangered worlds. For the perilous S-class world Gaeabrande, she selects Seiya Ryuuguuin due to his outstanding stats. His extreme caution, demanding exhaustive training before entry and over-preparation for minor threats, frequently clashes with her more impulsive nature, causing frustration.

Her primary support for summoned heroes comes through healing magic. She exhibits deep concern for their well-being, particularly Seiya's. This manifests as heartfelt distress, especially during critical moments. When Seiya sacrifices himself using the Valhalla Gate technique to defeat Gaeabrande's Demon Lord, she experiences crushing despair, pleading for him to survive and lamenting her perceived failure as a goddess.

A significant revelation about her connection to Seiya emerges. In his final moments on Gaeabrande, Seiya recalls a past life where he failed to save Ixphoria from its Demon Lord, leading to the deaths of his party, Princess Tiana, and their unborn child. He recognizes Ristarte as Tiana's reincarnation, expressing genuine happiness at ultimately saving her this time. This unveils a profound shared history shaping their relationship.

After Gaeabrande and Seiya's return to the human world, Ristarte receives her next mission: the SS-ranked world Ixphoria. During this summoning, she is overwhelmed with emotion upon seeing Seiya again. Contrary to standard procedures where heroes lose past summoning memories, Seiya retains his due to an exception granted by the Great Goddess Ishtar. Ristarte learns he chose to return specifically for her.

On Ixphoria, her dynamic with Seiya shifts. While still occasionally exasperated by his caution, she shows greater understanding of his methods and a deeper commitment to their partnership. She actively participates, supporting him emotionally and strategically within her divine capabilities.

Beyond the main narrative, Ristarte appears with other goddesses like Valkyrie, Adenela, and Seiya in a crossover involving the Great Tomb of Nazarick. Transported via an anomalous spatial crack during a Divine Realm disturbance, she interacts with its ruler Momonga and his subordinates. Her behavior remains consistent: expressing fear and discomfort around Nazarick's undead, relying on Seiya's leadership for safety evaluations and escape planning, and displaying emotional reactions and misunderstandings, especially regarding Seiya's interactions with fellow goddesses. She also attempts to uphold divine decorum despite the stressful circumstances.