Aqua, originating from the KonoSuba universe, is the Goddess of Water guiding humans to the afterlife and reincarnating them into other worlds. In the multiverse crossover, her divine nature remains, worshipped by the Axis Order. She possesses waist-length blue hair partially tied back by a distinctive water-molecule-shaped clip, and wears thigh-high boots, detached sleeves, and an extremely short miniskirt. Her personality displays pronounced childishness, blunt emotional outbursts, and a constant craving for praise. She exhibits bratty behavior, frequent crying, and selfish tendencies, often relying heavily on others for help. Despite these flaws, moments of unexpected kindness surface, such as defending Albedo from mockery about her virginity. Aqua demonstrates perceptiveness by correctly identifying Ainz, Tanya, and Subaru as fellow beings from Earth, crediting this insight to her role in transporting humans like Kazuma Sato to other dimensions. She shows no fear toward powerful entities like Ainz, frequently attempting to purify undead beings despite facing repercussions. Key involvements include her repeated failed attempts to exorcise Ainz and his guardians, resulting in punishments from figures like Roswaal. During a class talent show, she targeted undead classmates before Kazuma intervened. Assigned to animal care duties alongside Subaru and Aura Bella Fiora, she mistreated the Death Knight due to her hatred of undead. Her revelation as the goddess who sent humans to other worlds provoked Tanya's rage, requiring intervention from Subaru and Ainz. In the dimensional incident depicted in *Another World*, she was transported via wormhole alongside classmates, escaped golem attacks with a group including Naofumi, and later participated in combat against destructive golems. Her divine abilities encompass Turn Undead, a purification spell exponentially amplified by her goddess status, causing significant discomfort to Ainz and knocking Shalltear unconscious. She emits a Divine Aura that actively attracts undead, demonstrated when skeletons gathered around her. She wields Hydrokinesis, showcased controlling floodwaters. Notably, she possesses resistance to high-tier magic, including immunity to Ainz's Time Stop and Despair Aura. Relationships involve constant antagonism with Kazuma Sato, who frequently calls her useless and delusional, though they share a strictly platonic dynamic. She maintains friendships with Darkness and Megumin while teasing Chris about her breast size. Animosity defines her interactions with Overlord characters, particularly Ainz and his undead companions, whom she constantly tries to purify. She occasionally cooperates with Subaru, who defends her against Tanya's aggression and shares animal care duties, though he doubts her divine claims. Tanya's disbelief in her goddesshood fuels significant tension, escalating to violent confrontations requiring mediation.