The Billionaire's Regret：His Mistress Escaped

For five years, I'd been Ethan Roscente's dirty little secret.

Our entire social circle laughed at me behind my back. Even his precious Isabella Lowell had publicly humiliated me, calling me his on-call plaything.

But I stayed. Like a fool in love.

Until the day he signed those papers—consenting to terminate my pregnancy so Isabella's son could live. My baby reduced to nothing more than medical treatment.

"You'll likely never conceive again," the doctor said flatly.

The phone vibrated in my hand. "Sophia, did you file the immigration papers?" Olivia's voice was tense. "Tell me you're not leaving Daniel's heart behind in that bastard's chest."

My fingers clenched around the phone. That transplanted heart was all I had left of Daniel Evans—the only man who'd ever truly loved me.

"Push it through," I rasped. "I need to be gone in five days."

The door burst open before Olivia could respond.

Ethan filled the doorway, his gaze cutting through me like a scalpel. "Going somewhere?"

I forced my voice steady. "Girls' trip to Hokkaido. We're catching the first snow."

His fingers traced my jawline—a touch that once made me melt. Now it made my skin crawl.

"Our wedding's in five days," he murmured. "But first, I need your help with something."

I stopped breathing.

Five years of enduring whispers and sideways glances. Five years of humiliation. All because the heart pounding behind Ethan's ribs belonged to Daniel.

Daniel—my childhood sweetheart, killed by a hit-and-run driver who vanished into thin air. His final gift? Donating his heart anonymously.

It took me years to track it to Ethan. With the Roscente family's enemies, Ethan kept his transplant a deadly secret. Becoming his mistress was the only way to stay close.

They say hearts remember. I used to dream Daniel's heart would recognize me and make Ethan love me.

Five years proved me wrong.

I'd planned to disappear with my baby—the last living piece of Daniel. Now Ethan was offering marriage.

Against every screaming instinct, I said yes.

Then he brought me to the hospital. Isabella stood there, lips curved in a viper's smile.

"Thank you," she cooed. "Your baby's stem cells will save my son."

Ethan's hands gripped my shoulders. "After the procedure, we'll get married. This is the last thing I'll ever ask of you."

Ice shot through my veins. That was Daniel's child!