While Tomo sleeps to resolve the delirium from her fever, Mafuyu compares notes with the sympathetic Ayana Minase who offers her assistance upon request before the bell prompts the girls on their way to class as the priest Yūri Noda prosecutes a soliloquy about the »Tsar's Crowning«. Waylaid with no practical recourse, Sasha explains Mafuyu about the »Tsar's Crowning« icon along with the fanatical zeal driving the Adepts' pursuit thereof. Mafuyu's opprobrium of all Qwasers being murderers strikes a nerve within Sasha whose languishing into unconsciousness after holding her at bay sets the stage for a glimpse of Sasha's prologue in refining his iron-based Qwaser powers and gives way to a dexterously prepared apology pot of borscht from Mafuyu. Teresa admonishing caution of Mafuyu prior to departing with Sasha is the only warning of an innocuous bathtime session of girl talk becoming the preamble for Ayana showing her true colors as the Magnesium Qwaser as she wields Tomo in an obverse abduction; the ultimate irony of the whole confrontation is that even with her powers energized by Tomo's soma, Sasha successfully turns the tables on Ayana using an iconoclastic strategy in spite of his rage.

Resolving the aftermath of the subterfuge availed by the Magnesium Qwaser appears as child's play when Mafuyu challenges Sasha appraising Tomo's mammaries one night and rushes to his side when he wakes up from reliving the inception of his vendetta with the Qwaser of Gold. While Mafuyu bristles in frustration at Sasha's anti-social conduct and how he turned the tables on her that morning, Miyuri is shocked to have her overture rejected and her persecution perverted to her detriment yet again; later that evening, Mafuyu prepares a room for Sasha only to find that housing Sasha as per Father Yuri's volition is far easier said than done when he twice ignores her ground rules and nearly spears her with a »No spying!!!« projectile toss. Meanwhile, the Copper Qwaser Ekaterina Kurae is nearly finished with her voyage to Japan when a trio of gunmen charges her the relinquishment of her gynoid guardian Anastasia; a very violent »Leave me alone!!!« counterstrike on the three men gives way to Miyuri fawning over Ekaterina after her arrival in Japan prior to initiating the shopping spree whose ultimate irony is that it is the forum for Ekaterina to prove her hypothesis of Hana making an excellent Maria partner for her.

While Ekaterina continues appraising Hana's soma, Mafuyu leads Sasha through a girls' day out at the mall with Tomo and Teresa in which Sasha has to haul all of the recently-purchased payload like a beast of burden as punishment for ignoring her house rules. A last-minute visit to a lingerie shop at Tomo's request for a bigger brassiere sets the stage for Tomo and Teresa's abduction at the hands of some voyeurs from the fitting room right under Mafuyu and Sasha's noses; a bit of detective work and an expedient »Put it in neutral!!!« intercession from Sasha later, the voyeurs are easily defeated but prove themselves a warm-up compared to the fully-charged Ekaterina who decides to appraise the efficacy of Hana's soma. Even with Teresa recharging his soma, Ekaterina easily stalemates Sasha's close-range attacks and would have finished him off if not for Mafuyu and Teresa's combined interjection for temperance; while Mafuyu and Teresa perform the necessary housekeeping with the voyeurs and explaining about Athos, Ekaterina ultimately makes herself at home in Hana's apartment as she wastes no time in refining Hana as her Maria partner.

A nightmare of Teresa losing her mentor Wilma while tending some white lilies gives way to having explained to her the arrival of another heretic Qwaser from the Adepts in Japan searching for the »Tsar's Crowning«; as is usually the case with the Adepts and their disciples, it falls on Sasha to slay the assailant after he learns to be versatile with Mafuyu's cooking. While taking a recess in the campus church, Father Yuri explains about Teresa's prologue as a orphan alongside Sister Wilma and how the Chlorine Qwaser Croa led his men in exterminating all of the nuns in her orphanage; Tomo now being wielded as a hostage, it becomes apparent that Croa is not hostile to the idea of finishing what he started a dozen years ago. The deus ex machina that ultimately conquers Croa's chlorine is some well placed calcium hydroxide bags and a copper shield courtesy of Ekaterina; as an unexpected bonus, Teresa also decides to reside with Sasha.

Anxious about the prospect of heretic Qwasers of greater potency and psychosis trying their fortunes for the »Tsar's Crowning«, Mafuyu decides to take the initiative and search for coveted icon herself ; after a fruitless search through Yuudai Yamanobe's inventory, she then decides to entreat Miyuri's permission to search for clues in the Tsujidou mansion. Miyuri sees an opportunity to restore social homeostasis as she charges labor of Mafuyu along with Tomo and Sasha as guides for her family art exhibit. Ekaterina's teasing amplifies Sasha's aversion to being forced to work as a maid and sets the stage for Ekaterina to explain that her desire to see the Tsujidou Fabergé Egg is why the exhibit is; unfortunately, that same volition drives a paramilitary platoon to raid the exhibit and take the two Qwasers hostage along with the three girls. While Ekaterina relives her prologue of being raped by humans, Miyuri offers herself as erotic entertainment; Hana standing by with Anastasia and Miyuri having galvanized the libido of the soldiers combine into the perfect deus ex machina for Ekaterina to slaughter the soldiers using Miyuri's soma. The ultimate silver lining in this is that the platoon colonel has a bitter prologue with the Sodium Qwaser not unlike Sasha's.

While soaking in the tub, Mafuyu recounts the day at the aquarium where she and Tomo observed a manatee nursing its young when Tomo decides to lighten the ambiance with some horseplay. Guided by another childhood memory of Yuudai Yamanobe showing her his secret base, Mafuyu sets off with Miyuri the next morning to the Tsujidou mansion in order to locate the »Tsar's Crowning« -- the journey thereof no picnic not only because of Miyuri's aristocratic antics but also a trio of helium-wielding Qwasers that accosts the two girls. Mafuyu loses her footing near the escarpment and falls into the medical care of Shin'ichiro Ootori and his tomboyish protege Elizabeth; while Mafuyu gathers the ingredients to prepare a stew for dinner, Miyuri wandering to the middle of the battle is the ironic deus ex machina soma recharge that enables Elizabeth to quickly finish off the two remaining helium-wielding Qwasers' bid to chase their losses prior to feasting on Mafuyu's home-cooked stew. While Mafuyu reconciles her prologue with Yuudai's intercession for her as a child, her journey has ultimately been a wild goose chase while Shin'ichiro has already been there and is leading Elizabeth to St. Mihailov's Academy after igniting an effulgent »Keep away from my student!!!« inferno as a warning to Friederich Tanner against taking revenge on behalf of the Adepts.

Furious that Shin'ichiro and Elizabeth have decided to search for the »Tsar's Crowning« on Athos's behalf, the Adepts turn their efforts to their recent find: the fraternal twins Yuu and Aoi Kuchiba. While successful in manufacturing Yuu into a psychotic oxygen-wielding Qwaser hostile to Athos, the Adepts find that wielding Aoi as Yuu's Maria Magdalen partner proves to be their undoing when Aoi slays and assimilates Yuu during an initiation rite; while the Adepts compute their next move, Mafuyu's shock of Shin'ichiro as her world history teacher gives way to the divergent concourse between Sasha and Elizabeth at the banquet that night to which Miyuri invites herself along with the student council president Fumika Mitarae. Miyuri and Fumika grappling with their issues obfuscates Hana being abducted as an open challenge to Ekaterina who soon finds that she is no match for Yuu on her own with Anastasia now a scattered pile of corroded copper. Hana's courage and Teresa's ranged cover fire ultimately proves itself Ekaterina's life-saving deus ex machina; unfortunately, Sasha has no idea that Aoi is leading him into the same kind of trap when he replies a love letter that he finds at school day inception.

Even after having been taken captive, Teresa continues to stalemate Yuu who quickly finds that Teresa's antipathy toward him has soured her soma. Undaunted by this setback, Aoi proceeds with her mirage as a house-guest who charges Sasha a mortal volition for her brother that ignites a divergent concourse with Mafuyu who does not like that Sasha has forgotten whose residence it is when Hana hauling in the badly damaged Ekaterina prompts Aoi to explain her prologue with her twin brother Yuu but is unable to maintain the mirage when asked the relationship Mafuyu has with Sasha upon detecting the wound from Teresa's arrow attack. Teresa now emancipated, all that remains is to evacuate her -- a task easier said than done with the psychotic Aoi wielding oxygen as a weapon when the floor underneath gives way. A soma recharge from Mafuyu and some metallurgy later, Sasha fights Aoi to a stalemate while Ekaterina intercedes for Mafuyu after she restores Anastasia with Hana's soma; the ultimate irony of Sasha finishing off Aoi is that even though it did not change the situation for the better, Sasha begins to comprehend the rationale behind Mafuyu's plea for clemency when he realizes that Aoi and Yuu supporting each other has many parallels to his prologue with Olja.

While bootstrapping herself to begin another school day, Mafuyu notices that it is more difficult for her brassiere to contain her mammaries; a brief appraisal later, Tomo decides to make a plaster cast of Mafuyu's mammaries to commemorate the milestone. Miyuri pulls Mafuyu and Sasha aside to relay a story about a man that accosted the soft-spoken student representative Mitarae in his search for Akari; while no real damage was done, Miyuri nonetheless wishes the molester captured or repulsed and it falls on Mafuyu to bring this about. Upon departing with Teresa and Sasha to prosecute a nocturnal patrol, Mafuyu charges Tomo vigilance over the house just as Elizabeth is heading out for a nocturnal practice session armed with an admonition for vigilance against hostile Qwasers; on this ironic note, Tomo's clumsy cooking attempt becomes the deus ex machina to lure out an inept Qwaser named Joshua Phrygianos who guides Tomo through the basics of cooking and wishes to turn the tables on the other Qwasers that have maltreated him. In spite of the nocturnal cat-and-mouse wild goose chase between Elizabeth and Sasha, Tomo and Joshua ultimately develop a novel insightful perspective on their respective lives.