You Will Regret This Ichinose! [166]

“Masumi's gone now, genius-kun.”

Sakayanagi Arisu’s voice, tinged with amusement, pulled Uesugi Gen back to reality.

“You did that on purpose, didn’t you? You played along with what I was saying just to piss her off and make her leave.”

Uesugi Gen narrowed his eyes slightly as he spoke.

If it had been Sakayanagi speaking normally, her words should have been far more logical and aggressive. But just now, she had deliberately played along with him in perfect sync, setting off Kamuro Masumi like a firecracker.

“I told you, didn’t I? You belong to me alone. Tonight, I didn’t feel like sharing you with her.”

Sakayanagi Arisu slowly sat up from the bed, leaning into Uesugi Gen’s embrace. She pressed her ear against his chest, right where his heart was, closed her eyes, and murmured.

Uesugi Gen let out a sigh filled with grievance. “But I’m always the one getting beaten up.”

“Well, that’s on you. Running your mouth recklessly in a situation like that is hardly a wise choice.”

“There’s one more thing.”

Still with her eyes closed, Sakayanagi Arisu reached out for Uesugi Gen’s hand, grasping it gently. Then she guided it to her chest, pressing it against herself.

“Can you feel it?”

The small, soft sensation made Uesugi Gen let out a breath of relief.

Thank goodness, there’s still a little bit… Otherwise, if we had kids in the future, I’d have no choice but to turn to Horikita for help. Or maybe I should take matters into my own hands and give these treasures a little manual assistance while they’re still developing?

“That’s not what I meant!”

Sakayanagi Arisu’s voice carried an unusual trace of irritation.

“Ahem.”

Uesugi Gen hurriedly coughed twice to cover his embarrassment. After a brief pause, he spoke softly.

“Arisu… your heart is beating so intensely.”

“Yes.”

Her voice was like a dreamy sigh. “At the moment we kissed just now, I had never felt it so clearly before… The heart my dear mother bestowed upon me, beating so powerfully, tirelessly supporting this fragile body of mine.”

Hearing this, Uesugi Gen already knew exactly what she was getting at. Of course, something that obvious—it would be strange if she hadn’t noticed.

Then, with a smile playing on her lips, Sakayanagi Arisu asked,

“Ever since that game of chess we played, my health has mysteriously improved. My breathing has become smooth and natural, and my heart condition has never acted up again. It’s as if I’ve become a completely different person. Genius-kun, do you know why that is?”

Though her tone was light, there was an unmistakable certainty beneath it.

It wasn’t hard to figure out. Kamuro Masumi had no idea that Sakayanagi had suffered a heart episode last time—that was why she had dared to press on her so recklessly. But Uesugi Gen knew. Not only did he know, but he had even been threatened by Sakayanagi, who had used that very condition as leverage against him.

And judging from the way he had acted back then, he was undoubtedly very concerned about her health. Yet today, he had pinned Sakayanagi onto his lap and teased her without the slightest hesitation. The only explanation was that he understood exactly what was going on.

Uesugi Gen let out a sigh, his fingers weaving through Sakayanagi Arisu’s silken, dreamlike silver hair.

“Just think of it as… the gods couldn’t bear to see a girl with such a fairytale-like name pass away. So, they sent me to save her, allowing her to remain in this world a little longer.”

“Oh? That’s wonderful, then. I thought maybe the gods felt they’d lost to me and decided to give me a little compensation.”

Sakayanagi Arisu spoke softly, eyes still closed.

Uesugi Gen chuckled. “The gods don’t usually like ill-tempered little brats like you, Arisu.”

“Do they like me now?”

“…Yeah. They do now.”

…

Time flowed quietly between the two, its passage uncertain.

Lying in bed, holding Sakayanagi Arisu in his arms, Uesugi Gen had fallen into a deep sleep—until a sudden warmth against his skin stirred him awake.

The girl with a name as dreamy as a fairytale, an appearance as delicate as an elf, yet a personality as mischievous as a little devil, was now straddling him, gently licking his face.

Rubbing his eyes and feeling the warmth of her breath so close, Uesugi Gen mumbled groggily, “Arisu, go to sleep.”

“That won’t do,” she replied. “I finally got Masumi to leave. Tonight, you belong to me alone.”

“And besides…”

Sakayanagi Arisu placed a hand over her heart, a faint flush rising to her cheeks. “I want to feel it beating even more intensely. This is a sensation I’ve never experienced since the day I was born—I want more.”

Uesugi Gen let out a quiet sigh.

“You really are aggressive for someone so small.”

“It is hardly gentlemanly to comment on a lady’s figure so carelessly.”

There was a trace of dissatisfaction in Sakayanagi Arisu’s voice.

“In that case—”

In an instant, Uesugi Gen flipped her over, pinning her beneath him. Then, he leaned down and pressed a kiss to her thin, soft lips.

“Mmh—”

A faint sound escaped her.

A quiet, drawn-out sigh followed.

…

Lifting his head, Uesugi Gen asked, “Was that enough?”

“Not even close. I want more.”

Sakayanagi Arisu wrapped her arms around his neck, her gaze hazy and unfocused.

Uesugi Gen lowered himself again.

…

“Is that enough now?”

His voice carried a hint of menace. “Don’t push your luck. If you push me too far, I’ll be the one who won’t have enough.”

“Haa… haa…”

Breathing heavily, Sakayanagi Arisu whispered, “Not enough. I want to feel even more of you.”

“You said it yourself—don’t regret it.”

With that, his hand quietly moved to the waistband of her pants.

“Wait, that’s not what I meant.”

Feeling the chill against her skin, Sakayanagi Arisu’s breath hitched, her voice a mix of daze and panic.

“Too late. I almost forgot—you still have a punishment to serve. Consider this part of it.”

Uesugi Gen didn’t remove her clothes further. Instead, he leaned back slightly—then lowered his head.

There, beneath him, was everything beautiful in this world.

“…Ah.”

A wave of sensation surged through Sakayanagi Arisu, sweeping from the depths of her heart and flooding through every inch of her body.

Her smooth, porcelain-white legs trembled faintly against Uesugi Gen’s shoulders as a melody of gasping breaths filled the quiet room.

…

Half an hour later, after taking another bath, Sakayanagi Arisu lay quietly back in bed. This time, she no longer demanded more excitement.

“Arisu, are you done washing up? Want to go again?”

As Uesugi Gen spoke, he leaned in to kiss her—only to be blocked by a delicate, pale hand.

“Ahem, Genius-kun, or should I say, God-sama… Could I trouble you to brush your teeth first?”

Miss Sakayanagi made her request with impeccable politeness.

“You’re disgusted by your own taste?”

For once, a rare flush of embarrassment spread across Sakayanagi Arisu’s face. She used both hands to push Uesugi Gen away, her voice half-flustered as she muttered, “Just go! And please brush thoroughly. If you want to take another bath, that’s fine too—but make sure you clean up properly.”

“…Is it really that serious?”

“Go, or else you can forget about getting into my bed tonight.”

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This is a fan translation of 人在实教，一之濑你会后悔的 by 作者：白良. All rights to the original work belong to the creator. Please support them by exploring their original work or sharing it with others if you can. Thank you for reading and supporting my efforts to bring this story to a wider audience!