Yin sheepishly opened her eyes and immediately had to shut them tight again as it was too bright to see. "Yin?" She heard Yuck's voice. "Yin, are you feeling okay?" "No..." she groaned and squinted her eyes. "My arms are stinging and my ribs ache... Where am I?" "We're at the hospital," another voice answered.
"Yang... ?" She tried to pull herself up only to shrink back in shooting pain. "Hey, take it easy," Yuck soothed. "You were hurt so bad they had to put in a few stitches here and there..." He didn't want to go on. "Just lay down and rest," Yang finished. "Okay..." She weakly nodded and turned over onto her side. "Does Master Yo know?" "Uh... Yang called and told him everything," came Yuck's reluctant answer.
"Everything?" she repeated. "Even-" "Yes, everything," her brother cut her off. "And I hope you get grounded for it too. He's on his way here right now. It'll be fine. Go back to sleep." She closed her eyes without a word. Yuck gently put a hand on her cheek, gave her a soft kiss on the forehead, and tried to ignore the glare Yang shot at him. Soon Yin's breathing became slow and regular, and she drifted off to sleep.
Within minutes a soft knock on the door behind them could be heard, and without waiting for permission, who should come into the room wearing an unhappy look but the last panda in existence? It was Master Yo. "Is she asleep?" he asked dryly to no one in particular. Yang nodded in response while Yuck found himself awkwardly stepping away from the bed Yin slept in.
"Good. We can cut right to the chase without upsetting her. Yuck, from what I understand, you've knowingly helped my students cheat on their test, allowed one of them to be beaten nearly to death and almost eaten alive, dragged the other into mortal danger trying to save her, and not only that, but Yin has become very attached to you, and you, her. Care to explain yourself?"
His tone was clam, but it was the sort of calm that a parent would use toward a naughty child. It was the calm before the storm. "Look," Yuck started, "I-I didn't mean to cause any trouble. I was joking when I said I'd help them but they took it seriously and followed me. And I didn't kiss Yin, SHE kissed ME. Besides, I didn't force Yang to come with me and save her. He insisted." "And it's a good thing I did or God knows what you would've done with her out of the way!" Yang snapped defensively.
Yuck gritted his teeth. "That's not true." "Yes it is and you know it, JACKASS!" "Ssshh!" Master Yo silenced them. "You want Yin to wake up?" Both rodents shook their heads. "Then be quiet. Yang, I don't need your help with this so shut your face." Yang folded his arms but obeyed. "Yuck," Master Yo went on, "I won't let Yin see you anymore after this." A triumphant smirk spread across Yang's face. "But I-" "I don't want to hear it. You can say goodbye to her when she wakes up but after that, we'd better not see you ever again." "Or else," Yang added, cracking his knuckles.
"... Fine," Yuck sighed, letting his arms drop to his sides in defeat. "You win. Again. But this isn't exactly teaching your students responsibility, is it?" "What?" Master Yo raised an eyebrow. "You heard me. They're the ones who created me in the first place. I'm their living mistake and nothing more. I shouldn't even be alive right now. And she was all I had to hold onto." He glanced at Yin.
"But you couldn't let me have even that, could you?!" Now he was fighting back tears. "Yuck, I know you're upset-" "You don't know s***!" he cut him off. "Dude you sound like a girl on her period." Yang was trying not to laugh, Yuck was trying not to strangle him, and Master Yo was trying to find some patience.
"Both of you stop!" he demanded. They did. "Sorry..." Yuck muttered grudgingly. "I get a little worked up over her sometimes..." "I understand. I'll give you a moment alone with her. When I come back in this room, I expect you to leave. Understood?" "Yes, Master Yo..."
He dragged Yang out of the room, leaving Yuck alone with Yin. He turned and faced her. She was still peacefully asleep. "Yin...?" he whispered in her ear. She gave no response. 'She's better off asleep... I shouldn't wake her up for this. I cant tell her...' He found himself holing back tears again. "Goodbye, Yin," he murmured, stroking her cheek. "I love you."

You'll see why Master Yo made this decision in the next chapter.