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When the emperor fall in love

Fandom: Blue Lock

Created: 6/10/2026

Tags

RomanceSlice of LifeHurt/ComfortCurtainfic / Domestic StoryCharacter StudyJealousyCanon Setting
Contents

The Blue Lock King’s Hidden Vice

The morning sun filtered through the floor-to-ceiling windows of Michael Kaiser’s luxury apartment, casting a golden glow over the rumpled charcoal sheets. For Mimi, waking up in this bed still felt like a dream she was waiting to be jolted out of. The insecurity that had plagued her for years—the nagging voice telling her she was too small, too plain, or too broken for a world-class striker—hadn't vanished entirely, but it was becoming harder for those thoughts to breathe when she was wrapped in Kaiser’s arms.

A heavy, tattooed arm pulled her closer, his thumb tracing the curve of her hip. Kaiser groaned into the crook of her neck, his breath warm against her skin.

"Stay," he muttered, his voice gravelly with sleep. "The pitch can wait. Bastard München can survive an hour without their ace."

Mimi giggled, her long black hair fanning out over his chest as she turned to face him. "You’re the one who says perfection requires constant maintenance, Michael. If you’re late, Noa will have your head."

Kaiser opened one blue eye, peering at her with a mix of adoration and possessiveness. "Let him. I’d rather lose my head than leave this bed."

Despite his protests, he eventually lured her toward the bathroom. It had become their ritual since she moved in. The shower was a sprawling marble sanctuary, large enough for a small team, but they always stood close, huddled under the cascading warm water.

Mimi reached up, her small stature emphasized by the way she had to stand on her tiptoes just to lather the shampoo into his blonde-and-blue hair. He stood still for her, a rare display of submission that he only ever granted her. His hands, however, weren't nearly as still. They wandered over the curves of her waist and the small of her back, his fingers tracing the faint marks he’d left on her skin the night before.

"You look beautiful today," he whispered, tilting her chin up so he could press a wet kiss to her forehead. "Even when you’re half-asleep and dripping wet."

"You only say that because you're biased," Mimi replied, blushing as she rinsed the suds from his hair.

"I say it because it’s a fact," he corrected, his gaze darkening with a familiar intensity. "And because I want everyone who saw those photos of you in that dress to know that this is all mine. Every inch."

***

By the time Kaiser left for the training grounds, the apartment felt too quiet. Mimi spent her morning navigating the lingering shadows of her anxiety. It was easier now, having a home that felt like a fortress, but the transition from being a girl hiding in the shadows to the girlfriend of a global superstar was jarring. She avoided social media; the comments about the "mystery girl" from Ness’s party had died down into a dull roar of speculation, but the pressure to be "enough" still sat like a stone in her chest.

Cooking helped. It gave her hands something to do and her mind a focus. She prepared a balanced meal—grilled salmon, quinoa, and roasted vegetables—knowing exactly what his nutritional requirements were. She wanted to be his peace, the one thing in his high-octane life that was soft and reliable.

When the door finally clicked open in the early afternoon, she was setting the table. Kaiser walked in, smelling of grass and sweat, his training gear clinging to his athletic frame. He looked exhausted, but the moment his eyes landed on her, the sharp, arrogant edge of his expression softened.

"I’m home," he said, dropping his gym bag by the door.

Mimi smiled, walking over to meet him. "Lunch is ready. How was training?"

"Boring. Isagi is still trying to devour my light, and Ness is being... Ness," Kaiser sighed, pulling her into a hug. He buried his face in her hair, inhaling her scent of vanilla and lavender. "You’re the only thing that keeps me sane in that circus."

They ate in a comfortable silence, the kind that only comes from years of shared history. But even as they talked about mundane things, Mimi could feel his eyes on her. Kaiser watched the way she moved, the way she tucked her hair behind her ear, with a hunger that had nothing to do with the food on his plate.

***

The evening brought a different kind of energy. The sun dipped below the horizon, and the city lights of Munich began to twinkle outside. After a long day of being the "King" on the field, Kaiser was restless.

He was lounging on the velvet sofa, a glass of wine in his hand, watching Mimi as she organized some books on the shelf. She was wearing one of his oversized hoodies, the hem hitting mid-thigh, making her look even smaller and more delicate than usual.

"Mimi," he called out, his voice low and commanding.

She turned, her dark eyes wide. "Yes?"

"Come here."

She obeyed, as she always did, kneeling between his legs as he sat on the edge of the sofa. Kaiser ran his fingers through her long, straight black hair, his touch possessing.

"The guys were talking about you today," he said, his tone casual but his eyes sharp. "Ness thinks you’re a saint. He told the whole locker room that I don’t deserve someone as 'pure' and 'innocent' as you. Even Isagi had the audacity to agree that you seemed too nice for someone like me."

Mimi felt a flicker of amusement. "Is that so? They think I’m a little angel?"

Kaiser smirked, his knuckles grazing her jawline. "They have no idea, do they? They see this quiet, shy girl who hides behind me. They don't see the way you look at me when the door is locked."

He leaned back, his legs spreading slightly, his intent clear. Mimi felt that familiar rush of heat, the anxiety that usually tightened her throat being replaced by a different kind of tension—one she actually enjoyed. She knew what he wanted. More importantly, she knew what she wanted.

She reached for the waistband of his sweatpants, her movements practiced and confident. As she freed him, she looked up at him through her lashes, a playful, almost wicked glint in her eyes that would have shocked the Bastard München starting eleven to their core.

"Let them think I'm pure, Michael," she whispered, her voice dropping an octave. "It’s more fun when it’s a secret."

Kaiser groaned, his head falling back against the sofa as she took him into her mouth. He had always been obsessed with her, but this—this side of her that only he got to witness—was his ultimate prize. She was small, yes, but she handled him with a ferocity that matched his own.

He loved the way her small hands gripped his thighs, the way her black hair spilled over his lap, and the muffled sounds she made as he pushed deeper. He wasn't gentle; he never really was when it came to his desires. He wanted to fill her, to claim her voice, to make sure that the only thing she could think about was him.

"God, Mimi," he choked out, his fingers tangling in her hair to guide her rhythm. "You’re going to be the death of me."

She didn't stop, pushing herself to take more, loving the feeling of his dominance and the way he lost his composure only for her. In these moments, her insecurities didn't exist. She wasn't the "small girl" or the "depressed friend." She was his queen, the only person capable of bringing the King of Blue Lock to his knees.

When he finally hit his limit, his body tensing as he called her name, he pulled her up to his chest, kissing her deeply. The taste of him was on her lips, a silent testament to their shared secret.

"They really don't know, do they?" Kaiser panted, wiping a stray tear from her eye—a byproduct of the intensity, not sadness.

Mimi leaned her forehead against his, her breath hitching. "Let them keep their illusions. I like our reality much better."

Kaiser laughed, a genuine, rich sound, and pulled her into his lap, wrapping his arms around her as if shielding her from the rest of the world. He knew she still had bad days, days where the depression felt like a heavy shroud, but as long as she was in his house, in his bed, and under his skin, he would fight those demons for her.

"You're mine, Mimi," he whispered into the darkness of the room. "And I'm never letting you go back to being just a friend."

Mimi closed her eyes, feeling the steady beat of his heart against her ear. For the first time in a long time, the world felt exactly the right size.
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