[Kamen Rider X Demon Slayer] The Color of Light

I've revised the blurb, but the central premise is unchanged: a Kamen Rider x Demon Slayer crossover. I've incorporated a few more settings, so it's not just Saber.

Recorded in December 2025

Ships featured in this story: Snake and Love / Koma and Love

Ship forbidden from discussion here: Douma and Shinobu

Ships the author doesn't support, so please don't bring them up: Giyu and Shinobu / Shinobu and Giyu, either way

Blurb (a lighthearted little skit, in the first person, set at Demon Slayer Academy):

[Many years later, Tanjiro Kamado would still remember that snowy night.

A man with snow-white hair and eyes reflecting the colors of lapis lazuli, just like the "snow woman" described in stories, asked if he could stay the night...]

[Many years later, Zenitsu Agatsuma would still remember that moonlit night.

A man with snow-white hair and eyes reflecting the colors of lapis lazuli, just like the "snow woman" described in stories, bent down and gently asked about his injuries...]

[Many years later, Inosuke Hashibira would still remember that night on Mount Inoko.

A man with snow-white hair and eyes reflecting the colors of lapis lazuli, just like the "snow woman" described in stories, turned a demon to ash with a single slash. His murderous aura made the skin of this mountain king prickle...]

I looked at the three essays, which were clearly written using the same template, one of them riddled with typos. I shook my head, half amused and half exasperated.

Well... Sanemi had already been chewing Genya out over his math grades for two minutes... I might as well save the kid.

"Excuse me, Mr. Shinazugawa. Could I borrow Genya for a moment? I want him to go get Tanjiro, Zenitsu, and Inosuke for me... Would that be all right, Genya? I hear you get along pretty well with them~"

"Who said I'm friends with those guys!!!"

"Hey... I didn't say you were best friends."

"Anyway... we're not!"

Serious blurb:

When he woke up once more, his memories were shrouded in thick fog, leaving behind only hazy instincts.

When he saw man-eating demons toy with human lives, a nameless fury welled up inside him. His body followed instinct: he drew his sword and fought until he was exhausted, all to protect others before dawn.

"Even without a Sacred Sword, you still have the power to protect others."

A blurred figure appeared before his eyes.

With nothing to his name, he put down roots here. The family who considered him their savior was poor, but still welcomed him as one of their own. And so he received his first name:

[Mamoru]

But in this era, it was so hard for people to survive. To help the old man and child who had taken him in live better lives, Mamoru chose to leave.

He sold himself into servitude to a family called "Karasu-tori." In a dark carriage, he huddled close to children around his age. He thought he would finally get a full meal, but when searing pain hit and crimson blood poured from his nose and mouth, someone coldly told him:

"If you want to survive, you must become a useful ninja."

And so he received his second name:

[Black Fox]

At last, he escaped the family's watchful eyes. Carrying someone's hopes, he was supposed to live out a third life, named "Mitsunagi," but the poison inside him still held him firmly in its grip.

He couldn't survive without taking other people's lives, but he could never cross that line. It tormented him endlessly.

When the poison took effect, he resigned himself to his fate. Perhaps it would be fine to die like this, though he would be letting down all those he cared about, and those who had entrusted their hopes to him.

They say that, before death, people see their lives flash before their eyes, as if their minds are searching their memories for a long-lost answer in their final moments.

And so, he remembered the name he had been given at the very beginning:

Theme: Perhaps it's about becoming a warrior for happy endings.