Mira Tsubakihara looked up and saw that the rooftop was empty.
Aside from a slightly strong wind, there was nothing unusual. Shirakawa Miwa followed her gaze, and like Mira, she didn't see anyone either.
"It must be my imagination. I probably just forgot to close the door."
"Is that so?"
Miss Mira's eyes swept the surroundings cautiously.
Kanna Hiiragi was sitting in Kazuma's lap with his cock inside her pussy, she was covering her mouth and barely daring to breathe. She couldn't understand why Shirakawa-sensei hadn't noticed her at all, even with the rooftop door wide open and her clothes in a somewhat disheveled state.
And there was also that unfamiliar woman.
Kazuma quietly let out a breath of relief. Fortunately, he had reacted in time and pulled out the invisibility cloak, draping it over both of them. That was the only reason they hadn't been discovered by Shirakawa Miwa.
Phew… this invisibility cloak really is incredible.
As soon as Kazuma relaxed, his attention inevitably returned to their current situation, and he felt his cock throbbing inside her warm insides. It was difficult for him to remain calm in this situation.
His fingers caressed her plump, soft buttocks before he lifted and lowered her onto his cock.
"D-Don't move around right now, Kazuma…" Kanna whispered anxiously.
She was still extremely tense, and Kazuma could clearly feel her trembling.
"Relax," he murmured. "They can't see us. They have no idea we're here."
As he moved her ass up and down, Kazuma could clearly feel layers of soft flesh caressing, pressing against, and arousing his cock like tongues wrapping around it, leaving him almost unable to stop.
Kazuma's thrusts caused Kanna's vagina to spasm violently, her body trembled and convulsed while her skin turned pink.
Unable to stop Kazuma, she bit her lip to prevent any sound from betraying them.
"T-Then… what's actually going on?" she asked softly.
"We're invisible," Kazuma smiled. After all, their relationship had grown closer, so it no longer mattered to reveal a little of his secret to her. Still, had it all been just an illusion? He felt as though that woman had glanced at him several times.
Looking more closely, Kazuma suddenly recognized her.
That's Mira Tsubakihara.
Shirakawa Miwa opened her bento box, while Mira Tsubakihara sniffed the air, her expression turning slightly odd.
"Miwa… don't you think something smells strange?"
"Huh? Really?" Miwa tilted her head. "I don't smell anything."
Kanna Hiiragi was already struggling to keep her breathing steady. One hand covered her mouth, while the other clutched Kazuma's clothes tightly. Hearing Shirakawa-sensei's words only made her embarrassment deepen.
And mixed in with that embarrassment was a faint, confusing sense of excitement.
The idea of doing this right under her teacher's nose without her noticing filled her with strange excitement.
At the same time, this bad boy's cock was incredibly thick, filling her completely with every thrust, leaving no space between them. This overwhelming fullness sent waves of ecstasy through her body.
Beneath the invisibility cloak, Kazuma continued to have sex with Kanna without making much noise, careful not to attract attention. The cloak concealed the vision but couldn't block out the scent, making the situation even more difficult.
Wait… she's really looking this way.
This isn't my imagination, is it?!
Had she noticed something? That couldn't be possible. His gadgets weren't cheap knockoffs. Kazuma immediately froze, suspicion flashing across his face.
Moments later, Mira Tsubakihara looked away.
Kanna didn't notice his tension at all and subtly shifted, trying to make herself more comfortable.
"So, how have things been lately?" Mira Tsubakihara continued, chatting casually with Shirakawa Miwa. "By the way, have you ever thought about finding a boyfriend? A beautiful woman like you must have plenty of admirers."
"You already know about it, Mira-nee," Shirakawa Miwa replied helplessly. "There are people pursuing me, but I already have someone I like. I have a boyfriend."
"Oh right, your high school sweetheart," Mira said lightly, her tone tinged with teasing. "It's been so many years, and you still haven't forgotten him. You're really devoted."
"We haven't broken up," Miwa said quietly.
"What's the difference?" Mira countered. "He's been gone for eight years and never came back. Miwa, why hold on like this? You should let go and start a new life."
Shirakawa Miwa pursed her lips and gently rubbed the ring on her finger.
"He'll come back. We made a promise. I believe him…"
"It's touching," Mira sighed. "But what if he's already fallen for someone else?" She briefly glanced in Kazuma's direction, a playful smile on her lips. "Maybe he's enjoying himself with another woman right now."
Miwa paused, then lowered her head.
"Even so… I won't fall in love with anyone else."
Despite her gentle demeanor, Shirakawa Miwa's resolve was unwavering. The ring she wore wasn't a diamond—just a cheap toy—but she had cherished it all these years.
Hidden beneath the invisibility cloak, Kanna Hiiragi placed her hand against Kazuma's chest, trying to steady her breathing as she whispered.
"Shirakawa-sensei actually has a boyfriend? She's so popular… if people found out…"
"And you still have the energy to gossip?" Kazuma muttered.
He gazed at her bouncing breasts, then bit her full, white breast hard.
He left a mark on her breast.
Like a hungry child, he took her pink nipple into his mouth and began to suck greedily while his massive penis thrust harder between her legs.
He felt his climax approaching, and at the same time, Kanna Hiiragi forgot her curiosity and everything else, focusing only on his cock as it pounded deep inside her.
"You really are something," Mira Tsubakihara said with a chuckle, resting her chin on her hand. "What if that guy is an alien? Or a time traveler? Maybe he already disappeared from this world."
"That's impossible!" Shirakawa Miwa snapped. "This isn't a movie."
"Reality can be stranger than fiction," Mira replied meaningfully. "Things like time travel aren't necessarily impossible."
"Mira, have you been watching too many sci-fi movies lately?" Miwa laughed. "Aliens and time machines don't exist. You might as well say he's a fraud—that would be more believable."
Mira didn't argue further.
"I prefer romance movies with sci-fi elements—especially ones where the male lead travels through time. They're fascinating. Want to watch one together sometime?"
"Sure."
Time machines might not exist here, Kazuma thought irritably, but they definitely exist in the 22nd-Century Future Department Store.
Seriously though, how long are you two going to keep chatting? Please leave already.
After a few thrusts, Kazuma reached his climax. His cock was deeply embedded in the wall of her vagina.
Tingling sensations shot down his spine, and a thick stream of white semen erupted from the tip of his cock, drenching her pussy in a white fluid.
Kanna's body convulsed violently under the influence of a primal instinct. Fluids flowed from the lower part of her body; it took moments for her to calm down and regain her composure.
"Ouch… it's so warm," Kanna whispered. "Kazuma… what's that on you that's heating up?"
Kazuma frowned and tapped her lightly. "You really don't know?"
"That's not what I meant," she said quickly. "I meant your chest."
"My chest?"
He froze, then quickly lowered his head and pulled out a finely crafted card from inside his clothes. It was his good friend's communication card—a treasured item from the future.
The card emitted a faint glow, shimmering briefly with an unusual light.
But just as suddenly, the glow faded, and everything returned to normal, as if nothing had happened at all.
"…What was that?"
*****
20+ advanced chapters are currently available on Patreon for $10.
Please copy the full link to find the account. If you can't copy it from here, it is available below the novel's description. Thank you ^_^
You can join at https://www.patreon.com/cw/Kushitsu
✨Advanced chapters and NSFW pictures are available on Patreon✨