The situation escalated... unexpectedly.
While Nagisa's apartment relocation had indeed targeted Himehagi Yukina—intending to surprise the sword-maiden who'd remained on Itogami Island accompanying Sayaka—Bokue distinctly remembered this floor containing only two residential units: Nagisa's and Yukina's apartments.
Moreover, no additional units existed for sale on this level, eliminating possibilities of new neighbors accidentally entering wrong addresses.
So what exactly is happening here?
Observing the enormous-breasted mature-wife glasses-woman with twin crimson trails decorating the space beneath her nostrils, Bokue descended into momentary confusion.
Until a voice emerged from the living room sofa behind him—the Primogenitor girl's tone carrying rare flustered panic.
"W-wait... could that be Mom?"
Hm?
Mom?
Capturing that keyword with acute perception, Bokue refocused his attention on the enormous-breasted mature-wife glasses-woman before him.
Honestly, beyond sharing identical wine-red eye coloration, zero physical similarities connected her to Nagisa whatsoever.
First, Nagisa possessed black hair, while this woman displayed grayish-brown coloring.
Second, while Nagisa's development ranked favorably among peers, considering ethnic physiological differences—Asian women typically presenting more modest proportions compared to European counterparts—Nagisa's overall physique remained relatively slender.
Particularly after becoming the Fourth Primogenitor, her physical development had essentially frozen at current specifications.
Whereas this enormous-breasted mature-wife glasses-woman... her development transcended reasonable parameters. That magnificent chest circumference approached levels rivaling Lady Venelana's proportions.
Yet since Nagisa had personally identified her as "Mom"...
This...
While Bokue processed doorway uncertainties, the Primogenitor girl had already rolled from the sofa. She crossed the distance in rapid barefoot strides—pat-pat-pat—arriving at the entrance while observing the woman who shared zero visual mother-daughter resemblance. Her mouth twitched involuntarily.
"Uh... Mom, why did you suddenly return?"
"Nagisa..."
Hearing her daughter's voice finally triggered recognition. Mimori Akatsuki blinked while trailing twin nosebleed lines, redirecting her gaze.
Her eyes registered familiar features—identical to two months prior when Nagisa had just begun summer vacation. Absolutely unchanged.
Her lips moved slightly before producing coherent speech.
"Ah, so I didn't enter the wrong apartment after all."
Nagisa: "..."
She understood her mother's personality intimately. Mimori was the type who could immerse herself in laboratory environments for eighteen months straight without external reminders, entering "flow states" as effortlessly as breathing—ultimate single-thread processing incarnate.
However, laboratory immersion so profound it erased memory of one's own address seemed excessively problematic.
"No, no, that's not what I meant!"
Detecting subtle shifts in her daughter's expression, Mimori rapidly waved both hands in defensive clarification.
"Upon opening the door, seeing such a handsome young man initially made me assume wrong-address scenarios..."
"Even assuming wrong addresses, publicly bleeding from your nose toward young male strangers crosses boundaries."
Nagisa's eyes locked onto the conspicuously crimson liquid trails beneath her mother's nostrils, eyebrows furrowing with elegant disapproval.
"Mm... I'm bleeding?"
Only after her daughter's reminder did awareness register. Mimori raised one hand, wiping across her upper lip.
Indeed—palm covered in nosebleed.
Well, this presents poorly.
"This is physiological constitution!"
Mimori continued wiping while simultaneously defending herself.
"Whenever I experience excitement, nosebleeds occur spontaneously. Back in laboratory environments, successful experimental data frequently triggered immediate nasal hemorrhaging. It's habitual conditioning..."
However, immediately after cleaning the blood, her conversational trajectory pivoted sharply. Her upper body leaned forward, closing distance with Bokue while both eyes sparkled with focused intensity as their gazes locked.
"Speaking of which—this handsome young man's presence in our home... could he possibly be our Nagisa-chan's boyfriend?"
"Uh, that's..."
With her mother verbalizing the boyfriend question directly, crimson instantly suffused Nagisa's cheeks.
Despite being merely an eighteen-year-old girl—regardless of normally projecting cheerful vivacity—parental discovery of such relationships inevitably triggered embarrassment and awkwardness.
Yet she ultimately acknowledged the truth.
"Yes... that's correct."
Hearing confirmation, Mimori's eyes blazed with intensified luminosity.
"Oh! Our Nagisa has reached this stage already—actually bringing boys home! And such a remarkably handsome boy too. Excellent facial structure, magnificent physique. Come here, let me examine you properly..."
Her hand genuinely extended toward Bokue's chest.
The next instant, a smaller hand intercepted her trajectory.
Nagisa positioned herself like a mother hen protecting chicks during eagle-catch games—arms spread laterally, forming a large cross-shape that precisely blocked maternal access to boyfriend territory. Her cheeks puffed slightly with indignant determination.
"Mom, what are you doing?!"
"Ah... well, this..."
Mimori's outstretched hand froze mid-air. After brief hesitation, she withdrew it while scratching her cheek sheepishly.
"Just examining him—it won't cause harm. Besides, Nagisa-chan, you've forgotten—Mom possesses medical-system tactile perception abilities. Physical contact enables sensing someone's bodily condition comprehensively. Since he's Nagisa-chan's boyfriend, naturally Mom must conduct thorough evaluation~"
"Touching the back of his hand would suffice for that purpose."
"Obviously not."
Mimori argued with conviction.
"Larger contact surface areas provide superior accuracy. Particularly core torso regions like the che—chest and abdomen."
"I've never heard of such specifications!"
Nagisa immediately exposed the fabrication.
"Plus, Mom, you almost said 'chest muscles' just now!"
"Oh, don't fixate on trivial details. Regardless, let me examine him properly!"
Having reached this conversational juncture, Mimori abandoned all pretense. She executed a sidestep maneuver around her daughter, launching directly toward the young man behind her. Upon contact, she embraced him without ceremony, nuzzling aggressively while simultaneously introducing herself.
"First meeting—I'm Mimori Akatsuki, Nagisa-chan's mother. From now on, young man, you can call me 'Mom' just like Nagisa-chan does. Please treat me favorably~"
"Mom, release him immediately! Your nosebleed started flowing again—you're smearing it across Onii-sama's chest!"
"..."
Just as the entrance chaos threatened complete disorder, the adjacent apartment's security door suddenly opened.
A certain sword-maiden peeked through the opening, observing the neighboring doorway's chaotic tableau with blank bewilderment.
"Bokue-senpai... what exactly are you all doing?"
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