Warmaster Matsuda calls for a support team to secure the stadium her principal, the idol Ruri Kirishima, will give a concert in. In addition to the Vindicare squad Hiryu, Enishi is chosen to take care of anti Callidus measures since the involvement of another Officio in an incident is suspected.
The group of six arrives at the idol's hotel and is held up by the regular security personnel, whose leader confirms their identity with the Warmaster and directs them to the penthouse. Enishi knocks on the door and announces their presence in her usual polite song-like manner, disregarding her companion's concern of laying on too thick.
Instead of the Warmaster, Sayaka opens the door, blatantly displeased to see the Callidus and complains about getting disturbed while taking a shower. With an obviously fake apology, Enishi asks about the Warmaster's whereabouts and Sayaka points her to the room opposite of her own, mentioning that Chiaki is sleeping with the principal. Disappointed to hear that the new Warmaster seems to be just like her predecessor, the Callidus moves on while Sayaka slams her door shut.
She knocks and apologizes for interrupting the Warmaster's private time with the client and requests a moment to report, suggesting that they wait until morning otherwise. One of the Vindicare wonders if the Warmaster is still awake, and Enishi tells her that she might since her predecessor and partner Kharn never slept during missions, but mentions how she hated visitors.
Warmaster Matsuda steps out of the room, clad in silken sleepwear and her sign of office hat, making the Vindicare snap to attention. Enishi bows gracefully and introduces squad Hiryu as the long range and surveillance support and herself as the Callidus counter measures and crowd control support the Warmaster requested.
Being told to cut back on the formality and be quiet, Enishi elegantly snaps a paper fan into existence while listening to Chiaki explain that the client just went to sleep and she doesn't want to have to deal with her waking up. The Callidus assures that the group will perform their duties without being noticed and confirms that they have been briefed about the possible involvement of the Tenth Officio.
She continues to report that the list of suspects regarding the issue with Mami Tomoe is being worked on and passes a gift wrapped bottle of Kong whiskey to the Warmaster, a gift from the blonde Vindicare herself with a reminder to drink in strict moderation. Enishi asks if there is anything the Warmaster wants them to do before they start their sweep and guard duty, offering a massage to ease her visible tension.
Chiaki refuses the massage, mentioning that being tense is normal for her, but considers coffee a good idea for the night watch. Enishi immediately sends Vindicare Kagura to the hotel pantry to fetch her a strong iced coffee. While the tanned girl runs off, the Callidus tells her modest Warmaster that she should leave menial tasks like calling room service to them and instead focus her attention on guarding the principal.
Chiaki continues the briefing by explaining that they will only answer to her, not the principal or anyone else. She also mentions that the principal suspects a mole within the mundane security detail and orders her subordinates to cooperate, but to share as little information about their patrols, positions and capabilities as possible. Enishi acknowledges the orders and Vindicare Ayako confirms that she already jacked into the security radio frequency.
When Kagura returns with the coffee, Chiaki wonders how Enishi knew that she prefers it iced, who replies that she went with a hunch before asking if there are any further orders. The Warmaster shakes her head and Enishi sends squad Hiryu out with a serious but encouraging speech.
She makes to leave to start search herself, but is stopped by Chiaki asking her to share tips about resisting magical control with the security. Enishi agrees to try and, reminding the Warmaster to call her if she changes her mind about the massage, makes to leave.
Only a few steps away, she hears somebody talking to the Warmaster and, wondering who it is, steps up behind her. Spotting Noriko, she is somewhat surprised and glares at the cardboard box that the girl quickly unfolds and hides under. Chiaki glares at her and inquires about their relation and if this will affect the operation.
Enishi tells her that this is an unexpected family reunion that will not affect her behavior or capability during the mission. She nudges the box, asking if Ryota is doing well, to which it nods. She tells the covered girl that their father sends his regards, that their mother is still disappointed in her and that their elder sister wishes her well in her idol career despite sharing Enishi's wish that she grows out of it.
Enishi tells Chiaki that the family had high hopes for the girl but coldly states that it sometimes is a silly thing. Shooting the box another glare, she turns around and hurriedly leaves for the elevator, a bluish glow in her hand.
Soon Vindicare Ayumu contacts her about a discovery in an empty room on the penthouse floor and Enishi investigates, sneaking past Chiaki and Noriko with her Callidus magic. As soon as her sister leaves, she admits to Chiaki that they are being hard on their youngest sister because it is expected of them. The Warmaster swallows a mouthful of coffee and demands to know why she sneaked up on her.
Enishi simply replies that sneaking comes with being Callidus Rank Leader and tells her about Vindicare Ayumu's discovery. She mentions a discarded cleaning uniform in an empty room and hands her a calling card with a drawing and Chirpee account address, explaining that no fingerprints or other traces were found. She shows the Warmaster her phone, linked to the Chirpee account from the card to read the entries, which turn out to be the security leak.
She also discovers that this amateur journalist by the pen name NECO has published some profiles on magical girls and considers the possibility that she has more in stock. Worried about the possible impact on her father's health, she hopes that NECO has nothing on Noriko. When she notices that the Warmaster started a phone call, Enishi excuses herself and walks a few steps away to keep her superior's privacy.
During her call, NECO publishes another profile, namely that of the Warmaster, which Enishi shows her immediately. As she reads the newly published profile of herself, she loses her strength and composure, suppressing her sobs until Chiaki finishes her call. Chiaki catches Enishi's dropped phone and reads the abasing file. The sobbing Callidus protests that she was never fat and is only saving herself for marriage, looking to the Warmaster for reassurance.
Chiaki agrees that saving her virginity is a classy thing to do and assures that she does not look fat at all. Smiling, Enishi moves to embrace her Warmaster, but is stopped when she takes a reflexive step back and moves a hand toward her weapon. Blinking confused for a moment, the Callidus collects herself and apologizes for her tantrum and for trying to invade her personal space, nearly wiping her nose with her sleeve before stopping herself to use a handkerchief instead.
After a moment, Chiaki asks if she will be all right, which the Callidus confirms, assuring that a Karasawa never breaks. Giving the screen an angry look, she swears to do something to the one responsible, but Chiaki tells her not to take it to seriously and slaps her butt. Blushing, Enishi states that she does not mind her touch but points out the possibility of being seen by NECO or her sister. Chiaki tells her that she meant to pat her back and blames the fact that everyone is bigger than her for the misunderstanding.
With mild disappointment, Enishi makes to leave for her duties and recommends Chiaki to get some sleep after all. The Warmaster protests that she does not need sleep, but Enishi replies that she needs to be well rested for her duties and that while she might not care about her appearance, the rest of the Officio does.
The Warmaster is their ideal, carries their hopes and dreams, and affects the way all other Officios see them. Complimenting her hairstyle as a good start, she mentions that even Kharn secretly took good care of her hair and skin condition. Expressing the hope that Chiaki will take her advice into consideration, Enishi then takes her leave.
During the nightly patrols, Enishi acts as professional as expected of a rank leader, keeping herself invisible behind the Warmaster most of the time. After lunch time, Chiaki calls for a final security meeting and gathers everyone in Ruri's suite. Enishi will shadow the Warmaster and the principal for the entire duration of the concert while deploying anti Callidus measures.
Kyosuke asks about Chiaki's plan for emergency extractions, and Enishi mentions that they usually have a Callidus assume the appearance of the principal to lure hostiles away, offering herself for the role when needed. Chiaki adds that she should also disguise her and Sayaka since they are easily recognizable and would give the real Ruri away. Enishi compliments the plan and Kyosuke assures that his men would be able to pin hostiles down long enough for the extraction to complete.
Chiaki adds that if anyone notices a golden weapon, they are to inform her immediately and refrain from engaging or picking it up. Will inform Squad Hiryu and leaves the suite once the meeting concludes.
As she finishes the briefing, Chiaki approaches and Enishi thanks her for the suggestion, explaining that Kharn never called for Callidus support this way. They were only decoys, sometimes even set on fire for more distraction. Chiaki then asks her some questions which Enishi answers while trying not to be too long winded.
She explains about the range and scope of Callidus illusions and how for harder tasks, one needs to be in line of sight and preferably close to the targets, but can also imbue items with precast illusions to do it remotely. This only works with simple spells however and is commonly used to deal with non magical people since magical girls can easily see through these tricks. It also takes a lot f magic to prepare spells that last for more than a few minutes.
Regarding her own abilities during the mission, Enishi explains that she will use her training in concealment to remain invisible unless specifically called for, and will cast a layer of illusion magic over Chiaki, Sayaka and Ruri that works outwards. They will not see the illusion themselves, but notice a crimson glow around them when it is active.
Before leaving, Chiaki tells her to join Ruri and Sayaka in choosing costumes. Since she will be invisible anyway, she might as well dress up. Enishi thanks her Warmaster and energetically joins the idol.