Fandom: Kamen Rider Blade
TokuShipping week day 4- Role swap
An Archive of Our Own, a project of the Organization for Transformative Works
Here’s some background information for this au.
Alias: Kamen Rider Chalice
A tall, quiet, and somewhat mysterious young man with a gentle disposition. Though he is not human, he deeply loves humanity and wishes more than anything to become human himself. Ever since the Human Undead possessed him, he has been searching for a way to live as one of them not merely protecting humanity, but belonging to it.
He lives with Kotarou and Hirose at the café, helping out when he can. To him, they are family the first place he has ever truly felt at home. Despite his calm and kind exterior, there is always a quiet distance in him, a reminder that he is something other.
He does not begin on good terms with Aikawa Hajime, but over time their relationship deepens into something far more complicated than friendship.
As Kamen Rider Chalice, his appearance is predominantly black with blue accents, bearing a praying mantis design and a heart motif.
A reserved and emotionally guarded man who works for Board. He speaks little and keeps others at arm’s length, preferring the quiet company of his camera. Photography is both his hobby and his way of preserving moments he does not want to lose.
He lives with his coworker, Kurihara Haruka, and her daughter Amane after Haruka’s husband died in a Board-related accident. Though cold and distant with most people, he is noticeably gentler with Haruka and especially Amane, acting as a protective older brother — or even a father figure — to her.
He initially finds Kenzaki irritating and makes deliberate efforts to push him away. However, as they grow closer, Hajime discovers Kenzaki’s secret: he is the Joker Undead, the very one Board’s intern, Mutsuki, is desperate to seal. Faced with this truth, Hajime makes a quiet but firm decision to protect Kenzaki — even if it conflicts with his duty.
Though he refuses to admit it, his feelings for Kenzaki have grown into something more than friendship.
As Kamen Rider Blade, he wears black and silver armor modeled after a stag beetle, marked with a spade motif.
Alias: Kamen Rider Leangle
An overworked office employee struggling to stay afloat financially and emotionally. He possesses a strong sense of justice, but that same sincerity often leads him to trust the wrong people and land in dangerous situations.
After an especially exhausting day at work, he discovers a strange red belt on his walk home. His life changes instantly when he becomes possessed by an ancient spider entity. Soon after, mysterious men begin pursuing him, demanding the belt.
As Kamen Rider Leangle, his armor resembles a reed spider and carries a club motif.
Alias: Kamen Rider Garren
After graduating high school, Mutsuki was offered an internship at Board under one condition: if he helps seal all the Undead within three years, his college tuition will be fully paid. Two years in, progress has been minimal, and frustration has hardened his determination — especially when it comes to capturing the Joker Undead.
He is driven by a need to prove himself and become the strongest. After his girlfriend, Nozomi, is killed by an Undead, his resolve intensifies into something sharper and more dangerous.
He has always felt that something about Kenzaki Kazuma is off.
As Kamen Rider Garren, he appears in green armor inspired by a stag beetle with a diamond motif.
Co-owner of the café. Though he writes professionally, he mainly focuses on cookbooks. His favorite thing in the world is milk, which he treats with almost comedic reverence.
One day, while shopping for ingredients with Hirose, he found Kenzaki lying unconscious on the road. Without hesitation, he and Hirose took him in. Since then, Kenzaki has become part of their family.
Owner of the café, which she inherited from her late parents. Responsible and grounded, she often plays the straight man to Kotarou’s milk obsession.
She helped take Kenzaki in and cares deeply for him, treating him as family.
Tachibana’s girlfriend. She worries about how overworked he is and constantly encourages him to rest and take care of himself. They enjoy solving puzzles together — though she hates when he absentmindedly chews on the pieces.
When Tachibana begins behaving strangely, her concern only grows.
Mutsuki’s high school sweetheart. Though small in stature, she is outspoken and never hesitates to speak her mind. She worries deeply about Mutsuki putting himself in danger.
A researcher at Board and an acquaintance of Hajime. After Hajime was evicted, she offered him a place to stay due to his difficult circumstances.
Widowed after her husband’s death in a Board lab accident, she remains calm and composed, focusing on raising her daughter while balancing her work.
Bright, mischievous, and still quietly grieving her father’s death. When Hajime moves in, she quickly grows attached to him, seeing him as an older brother and sometimes even a substitute father.
His presence helps fill a space she didn’t realize she needed.
“Kotarou,” Kenzaki asked suddenly, leaning across the counter, “what does milk taste like?”
Kotarou blinked at him from behind a stack of order sheets. “Taste like? It tastes like milk.”
Kenzaki tilted his head slightly. “No, I mean… what does it feel like?”
Kotarou stared at him as if he’d just asked what gravity feels like.
“Cold? Creamy? Comforting?” he tried. “Kenzaki, are you feeling okay?”
Kenzaki straightened quickly, scratching the back of his head with a sheepish smile. He’d asked too directly again. He had to remember Kotarou and Hirose didn’t know. To them, he was just another slightly strange young man they’d taken in.
“Sorry,” Kenzaki laughed lightly. “Just curious.”
Kotarou narrowed his eyes. “You’ve had milk before.”
“Yes,” Kenzaki said gently.
But not the way you have.
Before Kotarou could question him further, the bell above the café door chimed.
Kenzaki looked up automatically.
Aikawa Hajime stepped inside, camera strap slung neatly over his shoulder, expression as unreadable as ever.
At his side, Amane bounced in with bright, restless energy that filled the quiet café instantly.
Hajime’s gaze swept the room and landed on Kenzaki.
But something inside Kenzaki tightened sharply chest, throat, stomach.
The same suffocating pressure he felt in battle when an opponent locked onto him. Instinctive.
Hajime’s voice cut through his spiraling thoughts.
“I was going to ask her if I could take some photos around the café.”
The pressure vanished as quickly as it had come.
Relief flooded him, confusing and warm.
“Oh,” Kenzaki said, perhaps too quickly. “She’s out right now, but I’m sure she wouldn’t mind.”
Hajime gave a short nod. A faint smile tugged at his mouth small, restrained.
Kenzaki’s pulse stumbled. His heart reacted before his mind could catch up.
Hajime turned to Amane. “Order whatever you’d like.”
She skipped to the counter and ordered a simple drink. Kenzaki retreated behind the counter to prepare it, forcing his breathing to even out.
Why did it feel like that?
Why had he been relieved?
When he returned with the drink, Amane leaned forward conspiratorially.
“Hmm?” he replied gently.
She lowered her voice. “Do you have a crush on Hajime?”
Everything in him seized.
His skin flushed and worse, the faint green tint flickered beneath it before he forced it down. He turned slightly away, trying to hide it.
“N-no,” he said quickly, far too quickly. His heart pounded against his ribs like it was trying to escape. Calm down. Be still my heart.
Amane giggled. “You totally do. Want me to set you up?”
“Absolutely not!” Kenzaki hissed under his breath, covering part of his face instinctively. “And besides… I doubt he reciprocates anything like that. He probably just tolerates me.”
The words were meant to be light.
Amane studied him for a second longer, then shrugged and skipped off toward the window.
A few minutes later, Hajime returned to the counter.
“Can I get a cup of tea?”
Kenzaki focused very hard on pouring without spilling. He could still hear Amane’s voice echoing in his head.
As he turned back with the tea, Hajime lifted his camera and snapped a photo.
The shutter clicked softly.
Kenzaki blinked. “You didn’t even ask.”
“I don’t need permission to photograph scenery.”
Hajime adjusted the lens instead of answering.
Amane had wandered toward the front window, distracted by something outside. The café grew quieter, as if the air itself were holding its breath.
“Hajime… can I ask you something?”
“You’re going to anyway.”
A small, almost shy smile crossed Kenzaki’s face. “What’s your favorite childhood memory?”
Hajime frowned faintly. “That’s random.”
“You remember things through photographs,” Kenzaki said softly. “So I thought… maybe there’s something you’d want to keep even without one.”
Hajime’s grip on the camera tightened almost imperceptibly.
“I don’t remember much from my childhood,” he said flatly. “And I don’t see the point in trying to.”
The finality in his tone wasn’t sharp — just closed.
Kenzaki nodded immediately. “I see.”
Silence settled between them again.
Hajime studied him for a moment. “Why are you asking these things?”
Kenzaki’s fingers curled slightly against the counter.
“I’ve just been thinking,” he admitted. “Humans are shaped by small things, aren’t they? Memories. Sensations. Moments.”
“And…” He swallowed. “If I can’t become human… I still want to understand the man I—”
The words hovered dangerously close to something irreversible.
Hajime’s expression shifted just slightly.
“The man you what?” he asked quietly.
Kenzaki looked down at his hands instead.
“The people important to me,” he corrected gently.
But he didn’t look away either.
After a moment, Kenzaki reached for Hajime’s empty cup to refill it.
Hajime’s hand was warm solid, scarred from past battles. Proof of humanity. Proof of pain.
Kenzaki’s own hand felt cold in comparison. Smooth. Wrong.
For a fraction of a second, neither pulled back.
Then Hajime withdrew first.
“…Your hands are cold,” he said.
Kenzaki smiled faintly. “I know.”
Later that night, in the quiet of his room, Hajime reviewed the photographs from the café.
But he always came back to a single image.
Kenzaki Kazuma standing behind the counter, light catching in his medium colored hair, expression soft and unguarded.
Hajime stared at it longer than he should have.
The thought felt dangerous.
Kenzaki was the Joker Undead.
One day, inevitably, he would have to seal him.
Hajime closed the laptop.
But he didn’t delete the photo.
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