In the days that followed, Kisara continued to be a source of solace and excitement for Kaiba. His work remained impeccable, his mind sharp, but it was the moments with her that he found himself anticipating with a sense of eagerness he couldn't fully explain.

One day, Kisara found herself facing a bittersweet moment as she prepared for her world tour. Excited about performing for her global fans but anxious about leaving Seto behind, she knew she had to tell him. She dialed his number.

"I thought that we agreed that you text me, not call me," she heard Kaiba's voice through the phone," But since you called, I might have about thirty minutes off…"

"No, Seto, It's not that."

"No?"

"I have some news," she began, her voice steady yet filled with emotion. "I've been booked for a world tour. I'll be gone for three months."

Kaiba remained silent for a couple of seconds. "Congratulations, Kisara. That's a significant achievement."

Kisara's heart sank slightly at his indifferent tone. "Thank you. I was hoping you'd be happy for me."

"This tour will be great for your career."

"But," she hesitated, "it means we won't see each other for a while."

"I understand. We'll continue as planned when you return." He said flatly.

Kisara felt a pang of hurt at his response. She had hoped for something more, a sign that he would miss her, but all she received was cold professionalism. "Alright, then. I guess this is goodbye for now."

"Safe travels, Kisara," Kaiba said, his tone dismissive as he hung up.

A wave of sadness washed over Kisara. The excitement of the tour was dampened by the cold farewell. As she embarked on her journey, she carried a heavy heart, missing the connection they shared.

For Kaiba, the days without Kisara quickly became unbearable. He found himself growing restless and frustrated, the absence of their encounters leaving a void he couldn't ignore. At first, he tried to bury himself in his work, but each passing day only intensified his longing. It wasn't just physical; he missed her presence, her laughter. It gnawed at him like an annoying mosquito, constantly buzzing around his head, driving him mad. He hated these feelings, this vulnerability that Kisara had somehow brought out in him. He was Seto Kaiba, the man who controlled everything and everyone in his life. Yet here he was, consumed by longing and frustration.

"I don't have time for this," he muttered, trying to shake off the unwelcome emotions as he turned back to his computer. But the thought of her wouldn't leave him alone. His focus wavered, his irritation growing.

Two and a half months into the tour, Kaiba was in his office when a news segment caught his attention. The headline read: "Kisara Spotted with New Boyfriend on Tour." His heart clenched as he watched the footage of Kisara smiling, her hand intertwined with another man's.

His reaction was immediate and intense. Anger surged through him, mixed with a bitter sense of betrayal. He felt infuriated, imagining Kisara with someone else. His mind raced with thoughts of their time together. How could she move on so quickly?

Despite his fury, Kaiba's pride kept him from calling her. He refused to show weakness, to let her know how much he was affected. Instead, he waited.

As the days passed, his anger simmered, turning into a gnawing ache. He couldn't concentrate on his work, his thoughts consumed by Kisara. The realization hit him hard—his feelings for her ran deeper than he had admitted, even to himself.

He spent hours in his office, staring at his phone, willing it to ring. Each day without contact from Kisara felt like an eternity.

This didn't go unnoticed by Mokuba. "Brother, don't you think you should call Kisara and see what's happening? I'm sure..."

"And why would I do that? I'm not concerned about petty lives celebrities lead."

"Seto, I know you. You haven't been yourself since she left the tour. Call her, talk to her."

"NO!" Kaiba snapped and Mokuba flinched. "Leave me be, Mokuba. I have a lot to do." And with that final tone, he buried himself behind the computer screen.