While Teru slumbered soundly, Muzan secured the bedroom door, and went from her bedroom to the Infinity Castle moments later.

The upper-rank demons had all assembled.

Upper Rank One, Kokushibou.

Upper Rank Two, Doma.

Upper Rank Three, Akaza.

Upper Rank Four, Hantengu.

Upper Rank Five, Gyokko.

Upper Rank Six, Daki, and Gyutaro.

And the Biwa demon, a demon who took complete control of the Infinity Castle.

Daki and Kokushibou shared an intimate bond, their closeness evident. She seemed to be teaching him some skills with the flute. Well, it was a peculiar sight to witness Kokushibou indulge in playing the flute.

Doma, jovially resting his hand upon Akaza's shoulder, appeared to be engaged in a spirited conversation.

Muzan's crimson gaze swept across the assembly. The upper-rank demons hushed, waiting for her commands.

The Lower Rank demons, having faltered in their missions and repeatedly fallen to the swordsmen of the Demon Slayer Corps, had recently been eradicated by Muzan herself.

With a flourish of her hand, Daki employed her blood demon art, and ribbons danced through the air, distributing printed strategic plans to each of the upper-rank demons.

"Daki, you've grown even more exquisite!" Doma chimed, his irises vibrant and playful, casting a colorful glint. A glance from Akaza swiftly dismissed Doma's arm from his shoulder, his disdain evident as he patted himself clean.

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For Doma, an affable facade masked a man devoid of genuine sentiment, a being untouched by emotions. He cared not whether she reciprocated his friendliness.

Daki rolled her eyes in response to Doma's antics.

"Doma-sama remains the same, isn’t he, brother?"

Gyutaro, on listening to his sister's murmurings, kept silent.

Doma was still smiling.

"Seven days from now, we shall eliminate the Demon Slayer Corps!"

Muzan declared.

...

As Teru's eyes fluttered open, he found himself enveloped in darkness. With a hint of weariness, he propped himself up, patting his forehead. It was time he made some changes.

The past few days, he had pondered over how to navigate his relationship with Muzan, to be more exact, his connection with the Demon Slayer Corps.

In fact, he couldn’t recall anything of his past life. He could not remember if he was Japanese or American, nor did he know the era he had lived in. Whenever he focused on retracing his origins, an inexplicable force would intervene, stubbornly obstructing his thoughts. He was a man devoid of memories.

Upon his arrival in the Taisho era, Teru had stumbled through Tokyo in a daze, until he encountered an exquisitely beautiful woman who earnestly proposed to him all of a sudden.

"Let's get married!"

He had fled the scene. Out of his expectation, he chanced upon her again the next day.

It was only after marrying Muzan that he began to reclaim a sense of purpose. Muzan had, in a way, redeemed him from being aimless and lost.

Teru was determined to live a happy life with this woman, and his stance hadn't changed even after he had learnt that Muzan was a demon. Her act of saving Sayo had proved that she was a good human...eh, a good demon, right?

She had been a perfect wife and companion, and she was even getting better these days. She used to speak in one way but act in another, nowadays she had learnt to put it straight and express her love more directly.

By the way, would there be reproductive isolate between humans and demons? Well, it was a distinct possibility...

Am I a human being, for real? Could it be that I am a demon who isn’t afraid of sunlight?

Well, don’t get distracted, it’s a serious issue!

A soft form leaned into him. Teru wrapped his arms around his wife, murmuring softly:

"I recalled when we first met."

"What?" She inquired.

"After that encounter, who could have imagined me meeting you again the very next? Destiny has designed us to meet and engage." He mused.

Muzan concealed her amusement, for she was the orchestrator of the coincidence. The matchmake was a demon, her subordinate. This secret was best kept from her husband.

"Shall we go on a trip? Make up for the honeymoon we missed. How about soaking in the hot springs near Mount Fuji?"

A blush graced Muzan's cheeks, her thoughts leading her elsewhere.

She turned her head, fidgeting.

"Sure."