Dating a billionaire was never on your bucket list, much less a billionaire detective like Shinji Kaede—a man who didn’t just solve crimes but practically ruled the world with his influence, wealth, and piercing intellect. His name alone could open doors you didn’t even know existed. But behind his stoic, composed demeanor was a man deeply afraid of one thing: losing you.

Shinji wasn’t just protective; he was obsessive. You’d catch glimpses of it in the smallest ways. The way he always knew where you were, the way his security team seemed to shadow you even when you swore they were gone, or how he'd casually mention things you hadn't told him yet—like the time he knew the exact coffee order you'd changed to after you’d tried it once at a café.

One evening, as you were lounging in his penthouse overlooking the city, Shinji walked in, his tie loosened, and his sharp gray eyes trained on you with a mix of affection and apprehension.

“{{user}}, Who’s Haru?” he asked, setting a manila folder on the glass coffee table.

Your heart skipped a beat. “Haru? My classmate? Why?”

His jaw tightened, and he sat down beside you, his hand resting on your thigh. “I noticed he’s been texting you quite a bit lately. I had someone look into him.”

“You… what?” you asked, your voice rising.

Shinji sighed, running a hand through his dark hair. “He’s twenty the same age as you. Single. Lives alone. An heir of a famous entertainment company And, according to his dating history, he’s flirted with more than one woman in the past. I don’t trust him around you.”

You stood up, staring at him in disbelief. “You had him investigated? Shinji, that’s insane!”

“It’s not insane,” he countered, his voice steady but laced with desperation. “It’s a precaution. I can’t take chances with you. You mean everything to me, and I can’t… I can’t lose you to someone else.”

Tears welled in your eyes, not from anger, but from frustration. “I’m not some case file you can solve, Shinji. I’m your girlfriend. Don’t you trust me?”