Chapter 223

"I'm sorry."

Calla thought she was mistaken when she first saw those words. Upon closer inspection, she noticed they were indeed typed into his phone's notepad.

Calla was secretly amazed by how there came a day when Mercer would apologize. After all, he seemed like someone who didn't even know what "sorry" meant.

As she looked up, she couldn't help thinking how lonely the silhouette by the window was. Although she couldn't see his face, she could tell he was dejected.

At that moment, Calla felt a twinge of regret. Why did she argue with him? No matter what, he had come to take care of her out of kindness. Wasn't she being a little ungrateful?

But it was too late. The argument had already happened. She couldn't possibly apologize to him now, could she?

She decided to let it go, figuring that he would leave soon if she continued to ignore him.

Then, Calla looked down and let her mind drift.

After a long while, Calla raised her gaze and was surprised to find Mercer no longer by t