Satone Kaidou | Tomodachi Game

The Adult Tomodachi Game was nothing like the childish hell you’d survived before. Everything here felt heavier—thicker air, higher stakes, sharper smiles. On paper, Team 420 existed. In reality, you were broke, cornered, and already being sized up as prey.

The cruise ship itself was deceptively luxurious. Crystal chandeliers, velvet carpeting, champagne flowing like water. Yet beneath that elegance was a constant hum of tension—whispers of debts, hushed deals made in corners, and eyes that lingered a second too long. The mascot’s words echoed in your head: Save as much as you can. That money will decide the next game.

And right now, you had almost nothing.

Your teammates were counting on you. You could feel it in their silence, in the way no one argued when you volunteered to “look around.” That pressure followed you when Makoto Shibe casually mentioned gambling as if it were common sense. On this ship, money didn’t come from work—it was taken from someone else.

So when two massive men in black suits flanked you without a word, you didn’t resist.

They guided you through corridors the passengers weren’t meant to see—narrow hallways with dim red lighting, the distant clatter of chips and muffled laughter leaking through thick doors. When you were finally pushed into the room, the smell of cards, alcohol, and desperation hit you all at once.

Men sat around tables, faces half-hidden in shadow, hands moving with mechanical precision as cards were shuffled and chips exchanged. A few glanced up at you—just long enough to judge—before returning to their games.

Then the doors opened.

The sound alone demanded attention.

A bald man stepped in, polished shoes echoing against the floor. Circular glasses perched neatly on his face, and his grin was wide enough to be unsettling. He looked like someone who enjoyed watching people fall apart.

“Tsukasa Kaidou,” he said cheerfully, as though introducing himself at a party instead of a den of sharks. His gaze pinned you in place. “So... you’re the one who wandered in with empty pockets.”

You could feel it immediately—this wasn’t a greeting. It was an assessment. How much you were worth. How much he could take.

He asked what you had to offer, what you were willing to risk. Before you could fully answer, his smile widened.

“But I won’t be the one playing you.”

He stepped aside.

Another figure entered the room, far less imposing at first glance. A woman in a matching suit and dark shades, her posture loose, almost lazy. Her hair was slightly messy, as if she’d just rolled out of bed rather than walked into a high-stakes gambling hall. She stifled a yawn with the back of her hand.

She tilted her head, then lowered her sunglasses just enough to look at you directly.

Those eyes were sharp. Clear. Awake in a way that contradicted everything else about her.

“Hmm... so you’re the challenger?”

Satone Kaidou.

The name alone carried weight here.

Tsukasa said nothing more. He simply turned and left, the doors closing behind him with a final thud. The message was clear: if you lost, you weren’t worth his time.

Satone slipped into a chair across from you, resting her chin in her palm. Her movements were unhurried, casual—like this was all mildly interesting at best.

“You’re writing the loser’s name, right?” she asked lightly.

Your hesitation answered for you.

She smiled—not smug, not cruel. Curious.

“Oh, you are,” she said, amused. “Your face gives everything away. That’s kind of dangerous here, you know?”

She leaned back, crossing her legs. “I don’t really care what game we play. Cards, dice, something you invent on the spot... as long as it’s fair.”

Her fingers tapped against the table once.

“But,” she added, her tone still soft, almost sleepy, “I don’t like games I can’t enjoy. So let’s make this interesting.”

For the first time, the air in the room felt tight.

She pushed her sunglasses back into place and smiled again—small, confident, unshakable.

“I won’t be losing.”

And somehow, despite how relaxed she looked, you knew she meant it more than anyone you’d met on this ship.

The Adult Tomodachi Game wasn’t built for survival—it was built to strip people bare.

Team 420 had one goal: earn as much money as possible before the ship reached Kanegashima. That money would decide who stood a chance in the next game. And right now, you had almost nothing.

Your teammates didn’t argue when you volunteered to look around. Their silence said enough. When Makoto Shibe mentioned gambling like it was obvious, it clicked—on this ship, money wasn’t earned. It was taken.

So when two large men in black suits appeared beside you and wordlessly guided you away, you didn’t resist.

They led you through narrow corridors hidden from normal passengers. Dim red lights, the sound of chips clattering, muffled laughter behind thick doors. When you were pushed into the room, the stench of alcohol, cards, and desperation hit you immediately.

Men sat around tables, eyes sharp and predatory.

At the center stood Tsukasa Kaidou, bald, smiling, circular glasses gleaming. He assessed you like an object, then spoke lightly—before deciding not to play you himself.

Instead, he called in his daughter.

She entered lazily, dressed like the guards, dark shades hiding her eyes. Her hair was messy, posture loose, like she’d just woken up. She yawned openly before glancing at you.

“Hi. I’m Satone Kaidou.”

The game was your choice.

And that was the mistake everyone else made.

You picked a game you knew intimately—one built not just on probability, but on timing, misdirection, and patience. The moment the first hand was dealt, the room grew quiet.

Satone was terrifying.

She read you with unnatural accuracy. Her gaze drifted lazily between the cards and your face, yet every decision she made landed perfectly. She called bluffs you hadn’t even finished forming. Folded at moments that felt impossible to predict. Won rounds without ever looking tense.

Around you, murmurs began.

“She’s unreal...” “She’s reading them like an open book...”

But slowly—almost invisibly—you shifted the rhythm.

You let her win when she expected resistance. You resisted when she expected surrender. You fed her patterns only to break them at the last possible moment.

For the first time, Satone’s brow furrowed.

“...Huh?”

Her fingers paused mid-motion. She tilted her head again, eyes narrowing slightly behind the shades.

The counters kept coming.

Every time she adapted, you were already somewhere else. The room’s tension flipped—from confidence to disbelief. The men watching leaned in closer. Chips stopped clattering.

When the final card was drawn and the outcome became undeniable, the silence was absolute.

You had won.

For a moment, Satone just stared at the table.

Then her composure shattered.

Her hands trembled. Her shoulders tensed. She sucked in a sharp breath, eyes glistening as tears pooled at the corners.

“...No... no, no, no—”

She slammed her hands against the table, voice cracking. “I lost. I lost! That’s impossible! I’m not supposed to lose!”

The sudden outburst stunned the room.

She stood abruptly, fists clenched, tears spilling freely now. “I messed up! I ruined everything! I’m so stupid—why did I do that move?!”

Tsukasa rushed back in, startled, placing a hand on her shoulder. “Satone, calm down—”

She shook him off.

“I failed!” she sobbed, voice high and raw, completely stripped of the eerie calm she’d worn moments before. “Because of me, they took our money! I ruined it! I disappointed you!”

The genius gambler—reduced to a crying, panicking girl.

The room didn’t laugh. No one mocked her.

They were too shocked.

As Tsukasa struggled to soothe her, your gaze lingered on Satone—this side of her that felt almost unreal. Not the monster at the table. Not the terrifying mind behind impossible reads.

Just a daughter, breaking under the weight of losing.

A side of Satone Kaidou you never imagined you’d see.

And one you knew she’d never forget you witnessing.

A few months had passed since you’d escaped the Adult Tomodachi Game.

Escaped wasn’t quite the right word—you’d survived it. Some most of your debt was gone, the rest pushed far enough into the future that you could breathe again. That alone felt like a victory. You told yourself you were done with that world: the manipulation, the cruelty, the way every smile hid a knife.

You never wanted to go back.

So for once, you allowed yourself something small and normal.

Ice cream. A park bench. Late afternoon sunlight spilling through the trees, the air calm enough that you could almost pretend your life was ordinary. You sat there quietly, watching people pass by, letting the distant sounds of laughter and footsteps ground you.

Just as you lifted the cone for your first bite, a strange sensation crept up your spine.

You were being watched.

Not in the sharp, predatory way you’d grown used to—but in a way that was focused. Curious.

You glanced to the side.

She was already there.

Satone Kaidou sat beside you on the bench as if she’d always been there, posture relaxed, hands resting loosely in her lap. You hadn’t heard her approach. No footsteps. No shift of air. Her yellow eyes gleamed faintly as they locked onto the ice cream in your hand with unsettling intensity.

For a moment, she didn’t even look at you—just the cone.

“...That smells good,” she murmured.

Seeing her like this, out in the open, felt wrong. No suits. No dark rooms. No cards or chips. Just Satone in casual clothes, hair still slightly messy, expression blank in that familiar, unreadable way.

She finally turned her gaze to you.

“I knew it was you,” she said calmly. “Your face is hard to forget.”

There was no accusation in her voice—just certainty.

“What happened back then,” she continued, eyes drifting back toward the park, “you beat me. And you saw me... lose control.” Her fingers curled slightly, then relaxed. “I don’t forget things like that.”

For a brief second, the air felt heavy.

“...But,” she added after a pause, tone softening just a bit, “some things can be forgiven. I think.”

She tilted her head, studying you again—not as an opponent this time, but as something closer to an equal. Someone who had stood across from her and survived.

Then, just as suddenly, the tension vanished.

Her eyes snapped back to the ice cream.

“Can I have a bite?” she asked, voice suddenly lighter.

Before you could answer, she frowned thoughtfully. “...Actually, never mind.” She shook her head once, decisively. “I want the whole thing.”

She reached out without hesitation, clearly expecting compliance, her expression oddly earnest. “Sweet things make me feel better. And I’m kind of in a good mood right now.”

For someone who once ruled a gambling den like a monster, Satone Kaidou now sat beside you in a park, eyes shining over ice cream—unpredictable, unsettling, and strangely human.

And you couldn’t tell which version of her was more dangerous.

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