Alastor was still flying, confused. "Joe's my arch-rival…we were meant to fight the ultimate battle! So why…?" He flew down by the Louvre, and slumped by the fountain.
Suddenly, a man in his lair opened up his giant window, declaring, "The thrill of a fight with your rival is always something to love. And when you don't get it, of course you're going to be upset. Which makes this newcomer the perfect prey for my akuma!" A butterfly flew into his hand, and he covered it with the other, infecting it, and turning it into a dark color. He let the butterfly go, and said, "Fly away, my little akuma, and evilize him!"
The butterfly made its way to the Louvre, and possessed Alastor's belt buckle. Alastor looked up, and a butterfly-shaped light appeared around his face. "Alastor, I am Hawk Moth," said the man in the lair. "I know you're not from this world, but your anger and sadness are still visible to me. I understand you want the most epic battle with your rival?" "I do!", replied Alastor. "Well, I can give you the power to win against them and their new friends! But in return, I'll need you to bring me Ladybug and Cat Noir's Miraculouses. Do we have a deal?" Hawk Moth asked. "I'm nobody's pawn, Hawk Moth. I'm not helping you with your agenda!" Alastor retorted. "Agenda? Oh no, you misunderstand. You're not working for me, we're working for each other. You're helping me achieve my goal, while I'm helping you achieve yours. Does that make it sound better?" Hawk Moth replied. "You've got yourself a deal, Hawk Moth!" Alastor said. Darkness surrounded him, and Alastor transformed into a demonic version of himself, and declared, in a dark and menacing voice, "I am Alastor. The weak shall give their heart and swear their eternal loyalty to me."
Meanwhile, Marinette, Adrien, Joe, and Silvia all walked to Collège Françoise Dupont, and went into the courtyard. There, Marinette and Adrien quickly introduced their new friends. Adrien started, "Guys, these are Joe and Silvia. You may recognize them from-" "Viewtiful Joe! I'm a huge fan of your movies!" Kim interrupted. "But wait, why are they here?" "Well, there was a portal that popped up in our world, and Joe got curious and dragged me in there," Silvia explained. "We then showed up in full view of the Eiffel Tower, and met Marinette and Adrien." "But apparently, a little while after we came in, the portal we came in through closed up, so now we're stuck here," Joe said. "And that's where you two come in," Marinette said, pointing to Max and Markov. "We need some technology that'll be able to replicate the portal, in order to send these two back home. Can you do that?"
Max confidentially pushed up his glasses and said, "A challenge worthy of my talents. And it would be an honor to help out famous movie stars such as yourselves." "Let's do this, Max!" Markov said, with a happy expression on his face. Max immediately pulled out blueprint paper and started drawing. "I've never really had to create an interdimensional portal, but I'm going to do the best I can! I'll make sure you guys get home safe and-"
Suddenly, a huge rumbling caused everyone and everything to shake. "What was that?" asked Silvia. The rumbling grew stronger. Suddenly, lightning struck the courtyard. "JOE!" screamed a deep voice. Everyone looked up in horror at the new akumatized villain. "Alastor?!" Joe and Silvia exclaimed. "Oh no… He must have gotten infected by one of Hawk Moth's akumas!" Marinette realized. "Everyone, run quickly to safety! Max, Markov, take shelter in the science lab and continue your work there!" she continued. "What about you?" Max asked. "Don't worry about us right now," Adrien said. "We just want to make sure you guys are safe." Max nodded and ran to the lab.
The four quickly ran outside of the school and transformed into their superhero counterparts. They tried to attack Alastor - yo-yo, staff, Voomerangs, Shocking Pink Bombs, heart bullets - but nothing worked. "Now you cannot defeat me," Alastor exclaimed. "This is truly the ultimate battle!"
"What are we gonna do?!" asked Silvia. "We can't exactly do anything!" "Well, maybe we can," said Joe. "I know all about the whole akumatization thing: Hawk Moth always goes for something that the person is touching. If I didn't know any better, I'd say that skull on his forehead looks a lot like the little belt buckle he has." "Great idea, Joe!" said Adrien. "And if it was just a belt buckle before, I can probably knock it off with my staff." He chucked his staff at Alastor, who, surprisingly, seemed to be ready to take the hit. The skull didn't fall off. "Let me try grabbing it with my yo-yo," said Marinette. She tossed her yo-yo at Alastor, who, again, took the attack, and wrapped it around the skull and pulled. It still did not come off. Silvia gasped. "It's stuck to him!" she realized.
Alastor laughed. "Did you really think Hawk Moth was that stupid?!" he exclaimed. He suddenly started circling around the four of them very quickly. Before they could realize what was happening, Marinette, Adrien, Joe, and Silvia were lifted up off their feet and thrown into the now massive tornado that Alastor had created. After he was sure that enough damage had been caused, Alastor transformed into his sword form and sliced the tornado in half, prematurely ending it. Joe and Silvia went flying off in one direction, while Marinette and Adrien went flying off in another.
"Alastor, what have you done?!" Hawk Moth exclaimed angrily. "You've let their Miraculouses escape!" "I told you, Hawk Moth," Alastor retorted. "I don't work for anyone. I work on my own free will!" Hawk Moth growled and stated, "If you cannot get me their Miraculouses, I will take away your powers and end this "ultimate battle" of yours!" Alastor growled back and said, "Fine! You will have your stupid treasures. But I will wait for them to come to me. It will make it all the more entertaining for me, and all the more harder for them."