It was not long after celebrating the rescue of his brother, Mario, and the restoring of the Dark Moon that E. Gadd called Luigi back to the lab. "What is it, professor?" He asked, entering the bunker. E. Gadd swiveled around in his chair to face Luigi with a serious look on his face.
"Well, it appears that some of the ghost from the mansion had found a rift in this dimension that leads into another one. I need you to do this one last task before settling down and capture the remaining ghost and bring them back before that dimension collapse." E. Gadd explained with the greatest worry.
"Alright, professor. I'ma you guy." Luigi said with the greatest confidence. "If I could suck up the master of illusions, a few ghost shouldn't be anything."
"That's the problem. It's not just a few ghost, but at least 50 had escape." He replied, a bit worried. Luigi started to shake at the thought of 50 ghost.
"W-w-well, at l-l-least I've had practice." Luigi stuttered, shaking in fear. The professor shook his head in disappointment. He then turned to the computer and started to work on finding the location where the ghost were. When he pin-pointed the location, he turned back to Luigi.
"It looks like you'll be going back to school. The ghost are at a place called..." The fixed his glasses and looked closer, " Yokai Academy." Luigi shivered at the mention of the name.
"Y-y-Yokai?" Luigi stuttered, looking very nervous. "D-d-doesn't that m-m-mean monster in Japanese?" The professor looked at Luigi, confused. "What? I've spent some time in Japan before. You could learn a few things there." Luigi stated. E. Gadd just shook his head.
"Anyway," he continued, "you have a set amount of time before the rift in the other dimension grows too big. If that happens, then I won't be able to bring you back."
"Well then, how much time do I have?" Luigi asked, nervous. The professor turned back to the computer and calculated. When he got the answer, E. Gadd turned back to Luigi.
"You have until sunrise to round up all the ghost." He replied. Luigi had doubts about this. "Well then, you should be on your way." E. Gadd said as he activated the Pixelator, sending Luigi to Yokai's front gate.
Meanwhile at the front gate of Yokai Academy, Ruby was locking up the school. She was about to head out when she saw something moving on one of the post on the gate. A camera was moving around, then it face Ruby, not moving anymore. She inspected the camera as the lens started to glow a bright green color and right before her eyes, Luigi was pixelated right in front of her, causing her to fall backwards. Luigi wasn't any luckier. He fell flat on his stomach, knocking the wind right out of him. "Oh man, that really wasn't a soft landing." He muttered to himself as he got up and brushed himself off.
"Hey!" Ruby yelled, causing Luigi to jump. Quickly, Luigi pulled out his flashlight and shined it on Ruby, causing her to shield herself from the bright light. "Who the heck do you think you are, appearing from nowhere?" She asked, trying to get up from the ground.
"Me? I'm Luigi." He said. He offered his hand to help her, but she swatted it away. Ruby managed to get up and brushed herself off. "Are you alright? I didn't mean to scare you." Ruby just looked at the plumber, realizing he might not be a student.
"What are you?" She asked him, crossing her arms.
"I'm just a plumber. I toll away the days with filthy..." Luigi started, but Ruby cut him short.
"No, I mean, are you even a monster?" Luigi froze at the word 'monster', shaking in fear.
"I-I-I don't k-k-know what y-y-you mean." Luigi said, his teeth chattering.
"This place is for monsters only." Ruby explained. "And if you're a human, I will have to kill you." She pulled out her staff and pointed it at Luigi. 'Oh crap.' Luigi thought.
"Wait! You need to hear this! Your world is in danger. There's a group of ghost loose in your world that's causing a rift that if it continues to grow, it will rip your world apart!" Luigi said, trying to convince Ruby, but she didn't buy it.
"Oh really? Well I haven't seen any ghost. But I do see a human. And humans don't belong at Yokai!" She yelled as the end of her staff glowed brighter. Luigi was speechless and couldn't move, but he knew that if he couldn't complete his mission, their world will collapse. But before either of them could move, a green ghost swooped in and stole Ruby's staff right out of her hands. It floated down the path and about halfway, it stop and turned around. He pointed at both Ruby and Luigi and laughed. Then looked over his prize and studied it. He acted like he was trying to work it like Ruby had, but couldn't figure it out. Then he realized that Ruby was running towards him and floated into the forest, disappearing from Ruby's line of sight. She growled and turned back to Luigi, who was still on his butt from the scare. "Since that little 'ghost' took my staff, I'm allowing you to live for now, as long as you help me get my staff back." She said, staring Luigi in the eye. Luigi got up and nodded.
"You know, I never got your name." Luigi said. Ruby brushed her ponytails back and glared at Luigi.
"I guess that since I'll be following you, you'll need to know my name." She said, not taking her eyes off him. "Just don't expect me to be all mushy with you." Luigi looked at her, a bit confused by what she said. "Name's Ruby." She said before walking into the forest the way the ghost went, Luigi following right behind her.
Yes I am back from the dead of school and with a new story! I hope you'll like it since it's the first crossover I've ever done and it's the first of it's kind. So far.