Y/N sat in the living room, her eyes fixed on the clock ticking away on the wall. It was almost 7 pm, the time when Minho usually returned from work. She could hear the echo of the door unlocking and his footsteps approaching. Y/N got up quickly, her heart fluttering at the thought of seeing Minho. He was always the calm and collected type, the one who expressed his love through subtle gestures.

As the door swung open, Y/N greeted him with a warm smile, taking his coat as usual. But something felt different today. Before she could say anything, Minho pulled her into a tight hug, burying his head into her neck. Y/N was taken aback by this sudden display of affection. She could feel the warmth of his embrace and his gentle heartbeat against her chest.

When Minho finally looked up, his eyes sparkled with a rare emotion. A small smile played on his lips as he leaned in and kissed her softly. Y/N's heart skipped a beat at the tenderness of that moment.

"I love you," Minho whispered before letting go and heading towards their bedroom.

Y/N stood there, a mix of confusion and happiness swirling inside her. She followed him into the bedroom, finding him sitting on the edge of the bed, lost in thought. "Minho, what's gotten into you?" she asked, her voice tinged with curiosity.

He looked up at her, his usual calm demeanor returning. "I just wanted to show you how much you mean to me in a different way today," he said softly. Y/N could see a hint of vulnerability in his eyes, a side of Minho she had never seen before.

As the evening passed, they shared a quiet dinner, the air thick with unspoken words. Y/N couldn't shake off the feeling that something was off, that there was a mystery hidden beneath Minho's usual facade. She observed him closely, noticing the way he glanced at his phone occasionally, his brow furrowed as if deep in thought.

Later that night, as they lay in bed, Y/N's mind raced with questions. She couldn't shake off the feeling that there was something Minho wasn't telling her. She turned to him, her eyes searching for answers. "Minho, is everything okay? You seemed distant today," she asked, her voice gentle yet probing.

Minho hesitated for a moment, his eyes locking with hers. "There's something I need to tell you," he finally spoke, his voice barely above a whisper. Y/N's heart pounded in her chest, anticipating what he was about to reveal.

"I've been receiving strange messages lately, anonymous threats," Minho confessed, his gaze fixed on the ceiling. "I didn't want to worry you, but I can't keep it a secret anymore."

Y/N felt a chill run down her spine at his words. "Threats? But why would someone target you? Who could it be?" she asked, her mind racing with possibilities.

Minho shook his head, his expression troubled. "I don't know. They claim to know things about us, about our past. It's like they're watching our every move," he explained, his voice heavy with unease.

As the night wore on, Y/N couldn't sleep, her mind consumed by fear and uncertainty. Who could be behind these threats? And why were they targeting Minho? She tossed and turned, the darkness of the room weighing heavily on her.

The next morning, Y/N woke up to find Minho already gone. She felt a pang of worry grip her heart. Where could he be at this hour? She checked her phone, only to discover a message from an unknown number. It read, "He's not who you think he is. Beware."

Fear gripped Y/N's heart as she read those words. Who could be sending these messages? And what did they mean by saying Minho wasn't who she thought he was? She frantically tried to reach Minho, but his phone went straight to voicemail.

Desperate for answers, Y/N decided to investigate on her own. She rifled through Minho's belongings, searching for any clue that could unravel the mystery. That's when she stumbled upon a hidden compartment in his desk, containing a folder filled with documents and photographs.

As she flipped through the papers, her hands trembled at what she discovered. Shock and disbelief washed over her as she realized the extent of Minho's deception. The man she thought she knew was a stranger, a web of lies woven around their relationship.

Suddenly, the pieces of the puzzle fell into place. The anonymous threats, the mysterious messages, it all made sense now. Y/N's world crumbled around her as she confronted the harsh reality of the betrayal.

In the end, Y/N was left shattered, picking up the broken pieces of her heart. The man she loved turned out to be a master manipulator, a facade of calmness and sweetness masking his true intentions. And as she stood there, the echoes of his words lingered in her mind, *"I love you,"* a cruel mockery of the love she once believed to be true. And so, the mystery of Minho unfolded, leaving Y/N to come to terms with the harsh truth that not all love is what it seems.