Seria establishes her base of operations in the capital by converting a vacant storefront into the Hearth Cafe, forcing her first hostage, Jimmy, to work as a butler in a clean uniform. To secure her peace, she infuses the entire building, the pastries, and the coffee with hearth magic, creating an oasis of relaxation that subtly manipulates her customers into feeling immense loyalty toward her. Her quiet routine is interrupted when Adea, a weeping academy student with massive but unawakened divine potential, accidentally breaks through her wards and collapses onto her park bench. Seria decides to tutor the girl, forcing her to practice moving five pencils in a star and cylinder formation to master mana control. The peace of the cafe is shattered when three noble students enter to harass Adea and demand she copy their homework. When the lead bully raises his hand to strike Adea, Seria steps in. Her semi-intelligent hearth magic, which is attuned to her irritation, causes a heavy kitchen knife to spin off the counter and pin the bully's foot to the floor, sinking deep into his shoe. Before the screaming can start, Seria flattens his nose with a satisfying punch and hurls his limp body in a high arc twenty meters across the street into a park pond. When the Defense Force officers arrive to investigate the disturbance, Seria uses her charm, a warm smile, and free coffee to influence their minds. The eyewitnesses, lulled by her hearth magic, unanimously defend her, resulting in the arrest of the bullies instead of the cafe owner. This event establishes Seria's reputation as a protective but dangerous presence in the capital, drawing the attention of the academy's elite.

An ear-splitting siren signals a massive spirit invasion in the Tandeen district, prompting Adea to use her second wish to beg Seria to save her mother, Patricia. Seria, Jimmy, and Adea drive into the warzone, navigating through streets littered with the corpses of civilians and Defense Force soldiers. They halt near a manhole where five wolf-like spirits are trying to dig out hiding civilians. To fight effectively, Seria abandons her human disguise, unleashing her tiara-like horns, her dual light-and-shadow wings, and her demon tail. She meets the first leaping spirit with raw physical strength, snapping its spine with her bare hands. When another spirit hurls her into a car wreck, she uses gravity magic to lift the vehicle and crush her attacker. Jimmy runs over a third spirit with the car, and Seria uses her shadow wing to skewer the surviving creature, draining its life force to instantly heal a fatal stomach wound on Adea's mother. Her display of raw power draws the immediate attention of the first prince, Perseus, who attacks her with his mana-infused hands. Seria easily blocks his strikes and slaps his cheek seven times, embedding a delayed force spell that doubles in power with each impact. When she triggers the spell, the accumulated force snaps Perseus's head sideways, shattering his jaw and hurls him into the rubble. She escapes by concealing her aura and reverting to her human form, but the battle leaves her unique magical signature all over the district, forcing the royal family to hunt down the mysterious four-winged deity who humiliated their champion.

Seria joins forces with Marcus to investigate the rising number of civilian disappearances bordering the battle zone. Marcus uses his unique ability to track the minuscule traces of twisted mana by scent, taste, and touch, eventually guiding them to an overgrown garden behind an old hotel. There, they locate a hidden trapdoor that releases a horrific stench of rot, death, and excrement. Jumping into the flooded cistern below, they realize the shallow water is actually blood. Further in, they discover a horrific scene: a mass grave of civilians used to power an active blood portal. When a swarm of mutant spirits ambushes them from the darkness, Marcus establishes a defensive barrier that reverses the kinetic energy of all incoming attacks. Seria casts a unique healing hex that jumps from target to target, using the spirits' own energy to overload their damaged nerve tissues, forcing them to retreat in agony. Although they successfully destroy the portal, the victory is soured when they return to the surface. Perseus, who has arrived with the Defense Force reinforcements, attempts to physically manipulate Seria's nervous system to seduce her. The touch triggers her survival instincts, causing her to shatter his ribs and puncture his lung with her bare fingers. An enraged Marcus joins the fray, beating his brother bloody and destroying a nearby trailer in the process. This violent family clash reveals that Perseus has completely succumbed to his corrupt incubus spirit form, forcing the king to lock him in the palace's deepest high-security dungeon to avoid a national scandal.

After sneaking into the academy's administrative building and discovering Trebor's secret land acquisitions, Seria decides to stay behind to ambush the corrupt teacher. When Trebor enters, she binds his divine power by ramming eleven cursed pencils, etched with direct death magic, into his body's main soul-connections. This torturous binding muffles his screams and prevents his spirit transformation, leaving him pinned to the floor. Her interrogation is cut short by a massive earthquake that rocks the palace and the academy grounds. A giant red portal opens directly over the school, unleashing a swarm of spirits. A colossally sized divine spirit attempts to step through, its giant foot crushing the administrative wing. Realizing the danger to the city, Seria rushes to the courtyard and uses blood magic to link her aura with Adea's massive mana pool, triggering Adea's past-life memories as the empress Jazira. Adea's eyes glow with blue light as Seria summons a network of ethereal blue roots that latch onto the portal and the monster's leg. The roots turn red as they violently drain the chaos energy, shredding the creature's flesh and forcing the portal to collapse. Before they can celebrate their victory, Senator Zhon reveals himself as an agent of the Great One. He stabs Seria in the back with a cursed dagger that traps her mind in an endless sensory-deprivation loop of nothingness, then drags both her and Marcus through a portal into a dimensional void, leaving Newerth behind. They crash-land in the rocky, barren landscape of Dedessia. Seria, having survived void zones in her past, breaks through the curse's mental loop and wakes up. She ruthlessly carves two runes into Zhon's forehead to lobotomize him, while Marcus eats the raw flesh of a mutant spirit to gain complete control over his own spirit form.