"Arjuna! There's a rat in the apartment! Don't leave any food out." Minami called out as she set traps.

"That's your problem for leaving a box of cookies in your bag and forgetting to zip it up." Arjuna said mockingly.

"Very funny Arjuna, just help me set the traps."

"I'm coming."

"Stupid Paris, stupid war, stupid Shirou. Can't believe the guy has been letting us do nothing for days on end."

"Stop complaining, one servant is down."

"And was immediately replaced with another one, we're back at square one, almost a month now and no progress, how does that make you feel?"

"I don't really care."

"You are literally the worse." Minami threw a box of traps at Arjuna to get him started.

At school, Marinette was surprised to Arthur talking to Miss Bustier about taking temporary classes. When they spoke alone, he told her that Shirou was taking a long time to get the war back in action, so they had some time to play around. He also told her that he was using her last name, "Cheng", while attending school, since he couldn't use his real name. The other teachers didn't know who he was beyond his connection to Marinette, so there wouldn't be any problems.

But he wasn't the only one taking classes, Tamamo was also enrolled under the name "Mizukume Izumo", since it would be obvious to the school who she was if she used her name, even just her first name, "Tamamo", would give it away. The only one who around their age, or perceived age, who wasn't enrolling during the break was Leticia. She refused to get into any trouble unless it had to do with the war, as she promised Ruler she would stay out of trouble.

Minami was also taking classes, but back in Fuyuki. She was taking online courses and some in Paris as an extra to her studies. Tsubasa was also thinking about it but decided to stay out of the school business since he was working behind the scenes to keep Rider in check and Ari safe while she was out. The other servants were open to the idea but didn't go through with it since they had the upper hand with knowledge from the Grail. Tamamo and Arthur both agreed to play stupid due to that upper hand, and the fact that they had to stay with their masters at all times so had to attend school.

Class started without a warning and the students got ready. Since Arthur and Tamamo had been around for a while, there was no need to introduce them. Miss Bustier told the class about a trip to London and how they would be traveling by Star Train to get there. Marinette hoped there wouldn't be any problems with going, either by a servant or Hawk Moth. Both of which were major problems Paris was facing in the recent time.

There was also a short report to be done about London before they headed off. The class was sectioned into groups and the deadline for the paper was just before they left. Marinette returned home and immediately worked on her paper with Alya and Nino over a phone call while Arthur made his way to Chloe's house, where he and Ari were to meet.

"I can't believe this; how did I get you two in my group?" Chloe scoffed.

"Don't be so stingy Chloe," Ari commented. "We're just going to write a few pages together and then we'll be done."

"And what about him?" Chloe pointed to Rider.

"What about me, Chloe?" Rider asked with the same tone she had.

"Unbelievable."

"Chloe," her mother said. "I'm leaving for New York; do you want anything?"

"You're the famous fashion designer, Audrey Bourgeois." Ari said as she brought out her phone to look up Audrey. "I've heard about you, you're quite famous."

"I'm sure I am, wait a minute. You...Uh blonde hair, Andrew?"

"Arthur," Arthur sighed.

"You're that Marine girl's husband, right?"

"Fiancé."

"Why are you in my house? And aren't you too young to be getting married?"

"Let's just finish this stupid project so I can go home."

At Adrien's house, he, Juleka and Tamamo were reading up on London when Tamamo went to Adrien's room to get something. She was wearing a bow over her ears and had one that partially hid her tails, to the people, it looked like prop tails instead of real ones. She did that to keep the people around her from knowing she wasn't human. And it worked, the only weird looks she got were from people wondering why she had "fake" tails.

Despite having that inconvenience, she was more than comfortable to roam the house as she pleased and often took things that weren't hers to play with. She went through Adrien's cabinets to find his notebook when she opened one and got a strong whiff of the cheese he had hidden inside. She took one out and examined it, it had to be years old and make her sick looking at it.

She called out for him since she didn't know what to do and complained about the smell. She also sniffed his jacket and grabbed a slice of the cheese from there. She was mad at him for keeping a secret from her, she was his servant and had the right to know at least something about her master. She demanded to know what the cheese was doing in his room, then sensed something else in his jacket and pulled out Plagg with her other hand.

She recognized as him a familiar and he corrected her. He was a kwami, a being who gave Adrien his powers as the superhero "Chat Noir". Before she made a scene from figuring out who he was, Adrien stopped her from saying anything after she made a face that looked like she was about to scold him. He needed her to keep it a secret, else he wouldn't be able to be Chat Noir and would lose his freedom. She agreed to keep quiet and told him she would cover for him if he ever needed it. On the condition that he didn't keep anymore secrets from her.

Juleka knocked on the door to ask if they were okay, and the two immediately got everything back in place and went out to help her on the report. It was thanks to help from Tamamo that any missing information was cleared up, despite agreeing with Arthur that she wouldn't use her knowledge from the Grail for schoolwork, she decided it wouldn't hurt to help out a little bit. She told Juleka that she lived in London for a time to excuse how much she knew about it.

"What's wrong Arjuna?" Minami asked.

"The air is stuffy," Arjuna said as he peaked out the curtains.

"Open the window."

"I don't think that's going to work."

"Why not?"

"Look."

Minami stood up and opened the curtains further, there was a heavy mist outside, there was nothing about fog in the weather report. Either the weather report was wrong, or a servant was behind it. And knowing the war, Minami concluded it was a servant, and it just had to happen before the trip to London. She called the school and said she was cancelling her appointment, there was something more important to take care of.

Leticia and Karna were on top of a building when they saw that the weather had changed so drastically. Karna was working on burning some of it with his fire as Leticia opened her book to record what was going on. She did that for when Ruler returned and if she missed anything that would be useful in the war that she could back on. She looked around, the master from Fuyuki were out as well, they were also trying to figure out what was causing the mist.

"It's Assassin," Arjuna said. He pulled back an arrow and looked around. "It doesn't look like she's doing anything."

"Should we wait for tomorrow?" Minami asked.

"I think so, we won't get anywhere by watching her do nothing."

"I'll tell the others to head home then. Come on Arjuna."