Test Tube, Fan, Lightbulb and Paintbrush were all in Test Tube's lab. Just hanging out while Test Tube finish some chemicals she's been experimenting with.

Everything was fine, sometimes interrupted by Lightbulbs lack of survive instincts or clumsiness. But it was fun, Paintbrush always made sure she didn't get herself hurt or anything.

But everything was interrupted when they heard screaming coming from the secret passage, which is not so secret anymore at this point. And after some heavy metal sounds, like something was rolling its way down the tunnel. And surprisingly, the 'something' was Yin-Yang. It's the third time just this week..

They try to get a drink from the vending machine, and then they fight and press the buttons insistently every time, then fall into her secret lab. THEY JUST CAN'T LEARN THEIR LESSON.

But this time, they fell so wrong that the tunnel actually broke. They fell so many times the metal tunnel got bend more than normal.. And now Test Tube has to fix it so they can leave her lab.

"Hi, Yin-Yang.." Test Tube sighed, pinching the bridge of the nose she clearly doesn't have. She just wanted a normal day with her friends, now she gotta babysit the troublesome brothers. She's so done with them-

"Omga! Yin-Yang, how did you end up down here?" Lightbulb exclaimed, putting her hands against her face. She didn't really care Yin-Yang broke the only way they could get out the lab, she just liked having company.

"How do you think they got here, dumbass? The tube!" Paintbrush said, a tone that clearly told they were annoyed at the situation, and kinda fed up with Lightbulb's.. Dumbness? They're not really sure.

"Well.. What do we do now? We'll be left stuck here forever till someone misses us?" Fan asked, clearly worried. He left his laptop in his room, he can't stay away from the internet for that long! But a pat from Test Tube calmed him down.

"I'll go fix the tube, I guess.. And you! Don't you dare touch anything, understood?" Test Tube sighed again, and after giving Yin-Yang a warning glare she went over to an old box on the corner of her lab. She's pretty sure she has some tools in here.. She's just not sure where, it's been a while since she fixed anything.