After Losing My Memory, I Became Muzan's Younger Brother

The moment Hong Ye opened his eyes, he fell into a pair of scarlet ones.

The man stroked his hair, his voice gentle and bewitching. “I am Gui Wu Zhi Wu Can, and you… are my younger brother, named Gui Wu Zhi Hong Ye.”

From then on, he became the younger brother Wu Can cherished in the palm of his hand.

He lived in the magnificent yet frigid Infinity Castle, doted on but imprisoned, like a bird with broken wings.

Until that rainy night, when he broke free of his cage and ran into the torrential downpour.

The rain soaked his black hair, but couldn't hide the joy shining in his eyes.

It was there in the rain that he met the swordsman whose eyes were like deep pools.

He had no idea that his birth as a “younger brother” stemmed from the Demon King’s thousand-year-long obsession.

*

Fu Gang Yi Yong found a boy in the rain one night.

He was soaked through, but his eyes shone like stars tempered in fire.

The boy called him “Mr. Yi Yong,” his voice full of trust and delight.

He would place the sweetest konpeito in his palm, and when Yi Yong practiced swordsmanship, he'd play a cheerful little tune on a leaf, however off-key.

Like a beam of light, he barged into Yi Yong's world, still and cold as an icy plain.

But beneath the light, shadows gathered.

The boy was clearly human, yet the aura of the Demon King clung to him.

The Hashira were on guard, and the Demon Slayer Corps members were afraid.

Only the boy remained oblivious, looking up at him with a pure smile:

“Mr. Yi Yong, where are we going next?”

Until the Upper Rank demons began appearing one by one.

The cult leader with rainbow-colored eyes smiled warmly. “Lord Hong Ye, now that you've had your fun, it's time to come home.”

The swordsman with six eyes sighed beneath the moon. “You don't belong here.”

The beautiful courtesan pleaded, “Lord Hong Ye, please come back.”

They all said different things, but it seemed they'd all received the same shocking order concerning Hong Ye.

“Bring him back, or kill him.”

Hong Ye couldn't understand why his gentle older brother would want to kill him.

But as the endless pursuit continued, he gradually discovered that he was the most dangerous outsider of all.

[Extra scene]

One day, Hong Ye found a yellowed letter signed “Chao Cang Hong Ye.”

“To my dear Yue Yan: I still remember the nights I climbed over the wall to keep you company when you were bored, but in the end, we were destined for different paths. I hate man-eating demons, and I hate even more… what you've become.”

He looked up in a daze. “Mr. Yi Yong, who is Yue Yan? That name… sounds so familiar.”

Fu Gang Yi Yong took the letter away without changing expression and handed him a packet of konpeito.

“Someone irrelevant.”

He doesn't care about a childhood friend of a thousand years. The one who arrives later is here to defeat them all!

[Reader's guide]

1. Pairing: Yi Yong x Hong Ye. It may look like a everyone-loves-the-protagonist story, but it's one-on-one throughout, with a happy ending and no tragic deaths.

2. Many original settings; I'll do my best to keep everyone in character.

Theme: The courage to run toward the unknown is itself the most radiant expression of humanity.