One night in Paris, Cat Noir was out patrolling to handle common criminals but couldn't find any of them yet. It felt way different than fighting akumas or sentimonsters. Soon enough Ladybug joins the patrol by swinging in front of him.

"Hey there Kitty cat" She greeted him.

"Hi Bugaboo" Cat Noir smiled seeing her.

"Ready for this?" Ladybug ran beside him.

"Of course partner. I'm always ready for this" Cat Noir nods and they leapt to the next rooftop.

Eventually they came near the Seine river when they saw movements in the water coming at their direction.

"What's that?" Cat Noir saw it come closer. And then in a large splash, a blue figure shoots out of the water in one huge leap and lands in front of them on the roof. He had a dark blue suit with purple parts and parts of his mask revealed pale white skin. His eyes were pure black like a shark.

"Hello Ladybug and Cat Noir" The stranger grinned, revealing sharp teeth.

"Who are you?" Asked Ladybug.

"Call me Carcharias. And your kitty cat is responsible for something to my miraculous past!" Carcharias said, glaring at Cat Noir. "It was an accident! My kwami couldn't help it!" Cat Noir protested. "I think NOT!" Carcharias swiftly moved and grabs him by the throat.

"KITTY!" Ladybug threw her yo-yo around Carcharias to free her partner. But Carcharias pulls the yo-yo rope and elbows Ladybug in the face.

"URGH!" Ladybug crashed back as Cat Noir used his claws to free himself.

"You're making a big mistake! CATACLYSM!" Cat Noir charged one in his hand. Carcharias then summons his own special power.

"SURPRISE ATTACK!" He glowed in a shark-like aura and swiftly dodged the cataclysm before ramming his fist on Cat Noir's stomach.

"AAAAACK!" Cat Noir crashed into a chimney.

"I expected more of a fight out of you, but now you're unworthy of this ring" Carcharias was about to pull Cat Noir's ring off when Ladybug threw a boomerang lucky charm at him to distract him.

"Stay away from my partner!" Ladybug yelled once catching the boomerang. Carcharias turns around with a berserk look on his face.

"You little red pest! I will….AGH! WHOOOOOOOOAAAA!" Carcharias was kicked from behind by Cat Noir and caught by Ladybug's yo-yo to be thrown into the river again. The two heroes saw him retreating to the bottom of the river.

"He's retreating" Cat Noir said.

"If only I had our aqua power ups we could pursuit him" Ladybug said.

"Better luck next time Milady. Now I have a princess to visit. See you soon!" Cat Noir pole vaulted away.

Ladybug hurried home before Cat Noir could find out about her identity.

X

Once home, Ladybug detransformed and waited for Cat Noir.

"That Carcharias really holds a grudge for Cat Noir's kwami, By even trying to destroy his holder" Marinette said to Tikki.

"Yes, But I know the shark kwami was not very nice before Plagg caused Atlantis to sink, Chompp was very stubborn and liked to be in control, he's pretty much a kwami of tenacity" Tikki said.

"Must be why he might insist his holder to attack the holder of destruction, he seems to agree with him" Marinette said. A few minutes later Cat Noir arrives and knocks on the trapdoor. Tikki hides in Marinette's purse while her holder answers.

"Come in" Marinette said. Cat Noir climbs inside and smiles seeing his princess.

"Hello my dear Purrincess" Cat Noir greeted her and kissed her hand.

"Always charming as always" Marinette blushed.

"You know me, I still got it. How are you doing anyway?" Cat Noir asked her.

"Just fine. And what about you Kitty?" Marinette said.

"Ah yeah, I fought a new guy named Carcharias. Ladybug and I kicked his butt into the waters where he belongs" Cat Noir said.

"Carcharias? As in Great white shark?. I'm just glad you kept your limbs from that shark" Marinette scratched his chin.

"Even Ladybug got to keep hers too" Cat Noir said with closed eyes.

Little do they suspect Carcharias has seen Cat Noir leapt into Marinette's room from a great distance.

"So you have some civil friends, Cat Noir. Perfect opportunity" Carcharias grinned.

"Chompp, Finish Eating" He destransformed and came out his hiding place in a trenchcoat and hat.

X

The next day, Adrien and Marinette were at Paris Zoo, looking at the animals there.

Right now they were at the savannah enclosure watching the rhinos.

"Aren't they beautiful as always?" Marinette said to Adrien.

"Yeah, From what I read, there were massive rhinos millions of years ago in Asia, could grow up to 5 meters tall and weigh 20 tons. They were called Paraceratherium" Adrien said.

"That's right, Adrien" Said a swedish-accented voice near them. Behind them was a brown-haired teenage boy with brown eyes and wearing a T-shirt labeled PES on and blue pants and red shoes.

"Huh? Who are you?" Both Adrien and Marinette turns around.

"The name's Pelle Skarsgård, I'm from Sweden but moved here to Paris with my family. I'm a part time volunteer here." Pelle said.

"Cool, I'm Marinette Dupain-Cheng." Marinette said.

"Pleasure to meet you. Are you Adrien's girlfriend?" Pelle asked.

"Yeah, For some time. By the way what does PES stand for?" Marinette noted his shirt.

"Phuket Elephant Sanctuary, My older brother used to volunteer there to help sick and abused elephants." Pelle explained.

"Nice. Well we're just looking around here." Marinette said.

"I see. Well it's my duty as a volunteer to guide visitors. Well gotta attend a group now. See you two soon" Pelle said before he left the two alone.

"See you later" Adrien said as he and Marinette were going to the next enclosure.

X

Much later they were having lunch at the Zoo while discussing the villain Ladybug and Cat Noir fought.

"So you've also heard the news about this shark villain called Carcharias?" Marinette asked.

"Yes, how do you know his name?" Adrien asked.

"Cat Noir told me. He said he was quite tough and aggressive" Marinette said.

"No kidding, many sharks are aggressive and dangerous, like bull sharks and hammerhead sharks" Adrien said and ate some fries.

"I wouldn't dream of swimming with any shark, like the Great white" Marinette said, drinking her soda.

"Great whites normally do not eat humans, they just mistake them for prey" Adrien said.

"Yeah, pity they got the rep of bloodthirsty killers. Many animals are misunderstood" Marinette replied. Adrien nodded and held her hand.

"I don't blame them, Humans don't know them much" Adrien said. They turn to see Pelle guide a group of tourists nearby.

"He really enjoys his job does he?" Marinette said.

"Yep" Adrien agreed. Soon enough they noticed James walk up to them.

"Well hello there" He tipped his fedora hat.

"Mr. Murphy, what brings you to the Zoo?" Adrien asked.

"Well to see those beautiful animals like the lions and such. Wanna see something cool?" James sat down and took out his phone and clicked on the photo gallery.

Marinette and Adrien watched curiously as James showed them some pictures of him holding a sea turtle.

"This baby sea turtle I released into the wild in Thailand at some turtle center" Jamed explained.

"It looks so adorable" Marinette said. Then James swipes to next picture of him and some scarab artifact from Egypt"

"This is from one of my expeditions in Egypt, I found it inside the ruins of a temple"

"Cool, But when did you get into searching for proof of Atlantis?" Asked Adrien.

"Well, I was fascinated by the stories of the sunken continent and went to get some fundings for an expedition to search for it in several areas in the world where it was said to have once been at the surface. It took me six months to find it at 2000 meters below the surface. Not as deep as the Titanic rests at but still, I was determined to find it." James explained his motivation.

"Fascinating. But were there any remains of people there?" Wondered Adrien.

"None were found, bones dissolve at such depths. Only some jewelry and armors were found besides the artifact I got" James replied.

"Of course. Nice to know how you wanted to find Atlantis" Adrien said.

"You're welcome. Right now I gotta go see more of the zoo kids. See you soon. And by the way you two, beware the shark baddie" James put his fedora on.

"You got it Mr. Murphy." Marinette said as James left them. He darkly chuckled quietly as he went to the tropical house.

X

After visiting the zoo, Adrien and Marinette were heading for their limo driven by his bodyguard Placide I.T aka The Gorilla.

"Take us to the Boulangerie Patisserie" Marinette told him. The bodyguard nodded with a grunt and started to drive.

"Thank goodness it's Saturday" Marinette said and leaned on Adrien's shoulder.

"Yeah, Well Mom's patient so no need to worry" Adrien said.

"Mmmhmm. Well I'm so glad she approved of our relationship" Marinette said.

"Unlike my late father" Adrien replied.

"Even though he was mean and cruel, he brought your mother back" Marinette said.

"Yes but I wish he was a better parent. Your parents love me like a son too" Adrien said and held her hand.

"They do. And all our friends approve too" Marinette said and kissed him.

A while later they finally arrived at Marinette's home. Adrien has told his mother on the phone he'll stay overnight with his girlfriend. Emilie understood and allowed him to.

After greeting her parents, Adrien and Marinette went upstairs to her room to spend some time alone.