On the first morning of summer vacation, Kazuki woke up to a soft sensation pressing against him from both sides.
'Huh? Both sides…?' The one on his left was Rias. 'So, who is on my right?' He shifted his gaze carefully.
"S-suu… suu…"
There, sleeping peacefully with a serene expression, was Akeno.
"…"
'Wait… what? Why is Akeno here?'
Last night, Rias had scolded him for going too far with Yumi and Xenovia, but after explaining himself and getting her forgiveness, they'd cuddled and fallen asleep together.
'I wonder when Akeno got into bed.' He found himself staring at her sleeping face.
Her usual ponytail was undone, her glossy black hair spreading out with a sweet fragrance. He'd never noticed before how long her eyelashes were. And her yukata had slipped open at the chest, revealing more than half of her enormous, melon-like breasts.
The sheer eroticism of it made him hold his breath, losing track of time as he gazed at her.
Then, pain shot through his ear.
"Hey, Kazuki! Why are you ignoring me and staring at Akeno like that?!"
"Ouch ow ow! S-sorry, Rias!"
Before he knew it, Rias—already awake—was yanking his ear.
"Ugh! Kazuki, you're only supposed to look at me!"
Rias' lips drew close to his. But just before they met, his body was yanked backward—and the one who pulled him, Akeno, stole his lips instead.
"A-AHHHHH?! AKENOOOOOO—?!"
"—Mmm, slurpp… Hehe, good morning, Kazu-kun~♪"
"…Morning, Akeno."
"Mmm, when it's just the two of us, call me A-chan, okay?"
"Uh, but it's not just the two of us right now—"
"That's right, Akeno! What do you think you're doing, ignoring me and getting all cozy?!"
"…You're so loud in the morning, Rias. You'll disturb the neighbors."
"There are no neighbors to disturb! We just had this place remodeled—it's only us here! And besides, Akeno, you're always trying to lay your hands on what's mine! I hate it!!"
The pillow Rias threw hit Akeno square in the face. Akeno picked it up with her usual cheerful smile, though her eyes weren't smiling, and threw it back.
"What's the harm in a little fun? You're so stingy, Rias!"
THWACK!
"This room is sacred—just for me and Kazuki! I won't let you have your way, Akeno!!"
THWACK!
"Sirzechs-sama said we should all get along as a family! Are you ignoring the Maou's wishes just because you're his little sister?!"
THWACK!
"I don't care about that! Why do you and Onii-sama both have to get in the way of me and Kazuki? Ugh!!"
THWACK!
"Fu fu, getting emotional so easily… This is why virgins are the worst."
THWACK!
"You did NOT just say that! Like you've been taken more than once!!"
"Oh dear. 1×2=2, but no matter what you multiply by 0, it'll always be 0~"
"Grrrr! What's that supposed to mean, you slutty Akeno?!"
"Fuck you, Rias, you stuck-up bitch!"
What had started as a playful pillow fight between the two had devolved into a childish squabble. But as their argument raged on, Kazuki suddenly felt something was off.
He glanced around the room and froze.
"…Huh?"
The interior had changed. Drastically. His apartment was supposed to be a modest 2LDK, six-tatami rooms at best. But now, this single room alone was easily twice as large.
The bed Rias and Akeno were wrestling on? King-sized. Last night, everything had been normal. 'What the hell happened?'
Come to think of it, Rias had muttered something about renovations. But surely she didn't—
Kazuki bolted out of the room—only to find the entire apartment building transformed into a luxury high-rise.
"Hahaha… no fucking way."
Apparently, the same absurd upgrade that had happened to Issei's house in the original story had now happened to Kazuki Fuwa's apartment.
'What. The. Actual. Fuck.'
The twenty-year-old, four-story apartment complex he'd been living in had—overnight—become a ten-floor, three-basement-level ultra-luxury condominium, with six times the land area.
'Was this what they called a "hundred-million-yen mansion"?'
And the reason…
"Onii-sama said that as part of our countermeasures against the 'Khaos Brigade,' it's better for all of us to live together," Rias purred, serving breakfast alongside Akeno.
"So I took the opportunity to renovate everything in one go. Yumi, Xenovia, and Koneko will be moving in today."
Kazuki chewed his food slowly, processing the insanity. 'Yeah, I got the reasoning. But a fucking heads-up would've been nice.'
"What about the other residents?"
"No worries," Akeno chimed in with a sly smile. "We arranged for them to relocate—smoothly, of course."
"And Issei? He's got a family, doesn't he?"
"Already handled," Rias smirked. "We got his parents' permission and upgraded their home too—bigger and safer. They were thrilled."
'Of course,' they'd thought of everything.
As they explained the new layout, Kazuki's jaw kept dropping.
The basement floors now housed a gym, an indoor pool, a private theater, a fucking library, and even an onsen.
The first floor was a lavish lobby, the second floor had a dining hall, bar, conference rooms, and recreation areas, and from the third floor up? Luxury suites—each bigger than twenty tatami mats.
The upper floors? Reserved for guests or future harem members, knowing Rias.
Oh, and the entire building was wrapped in an impregnable barrier, shrugging off any physical or magical attack.
This wasn't just an apartment anymore—it was a god-tier resort that put five-star hotels to shame.
As for Kazuki Fuwa, who was just a commoner at heart, drowning in opulence he never asked for.
'But hey, if this is my life now… I'm not complaining.'
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