It was a sunny afternoon and Marinette had just settled down at her desk in her room to start writing an outline for her essay. She got all of two sentences of the introduction done before several loud beeps alerted her that the Paris Watch site had multiple reports of an akuma.
Leaping out of her chair, she quickly scanned the posts and saw the akuma seemed to be forcing people to reveal secrets by touching them. Marinette gave an almost longing glance at her homework before transforming and leaping off across the rooftops, quickly joined by Adder who had been in the park nearby.
Following the sound of screaming and shouting, the two heroes found the akuma chasing after a middle aged woman with their hands outstretched. They appeared to be male and were dressed in a wince-worthy combination of an electric green and yellow formal suit. They had a matching hat on their head, except it also was longer in the front and covered most of their face with only glowing red eyes visible from the unnaturally dark shadow.
Chat Noir finally arrived and perched on a streetlight nearby, calling down, "Hey, that's not very nice, Glowy."
The akuma looked up and clenched their fists angrily. "My name is Guilty Conscience, not Glowy. You're just as bad as everyone else, I'll make sure you share your secrets before getting your Miraculous!"
They made a lunge for Chat Noir, jumping higher than would be possible without the akuma and barely missing the cat hero's foot as he leaped backwards, landing next to Helmine. The turtle hero had joined Ladybug and Adder and was holding their staff in a defensive position, using it to bat away Guilty Conscience when they tried to chase them onto the roof.
Adder snorted as Chat called tauntingly over his shoulder, "Not furry fast, are you?" as they led the akuma towards the now-empty park.
"That was pushing it." Ladybug replied, shaking her head in feigned disgust as she swung across a gap between two buildings and tumbled to a landing on the roof. The others followed her, with Helmine stumbling and almost falling as they moved to avoid Guilty Conscience's lunge.
The akuma disappeared suddenly just as they reached the park and the heroes looked around, trying to figure out where they'd gone. Only spotting trees and grass, Ladybug frowned, wondering if they'd lost interest in the heroes for the time being to try and get revenge on more civilians.
Suddenly, Chat shoved her out of the way as Guilty Conscience appeared out of nowhere from above them, trying to grab ladybugs shoulder. Unfortunately, he didn't quite move out of the way in time and his wrist was touched. The heroes' eyes all widened as Chat opened his mouth, only for Adder to quickly cover his mouth before he could say anything, receiving a grateful look from Chat Noir in return.
Ladybug and Helmine were busy fending off Guilty Conscience and trying to figure out where the akuma was, not having much luck with the latter by the looks of it. Helmine blocked their hands with the staff and tried to kick their feet out from under them, causing them to trip backwards.
Ladybug shifted back and threw her yo-yo upwards, yelling, "Lucky charm!" There was a burst of red light and then a small bottle of something fell into her hands. Examining, she saw it was a container of superglue and looked around trying to figure out what to do with it.
Meanwhile, Adder had lost his grip on Chat and was shooting crossbow bolts at Guilty Conscience trying to prevent them from touching Helmine. The cat hero couldn't stop himself from talking any longer and everyone turned towards him, the akuma eagerly and everyone else in horror.
Chat looked at the akuma and said loudly, "I stole an eraser from one of my friends today. I don't actually like ketchup. My-" He continued spouting minor secrets while the other heroes slumped in relief and Guilty Conscience scowled angrily.
"You'll run out of such stupid secrets soon and then we'll know what you really have done." They yelled, making another attempt to hit Helmine and being blocked by her staff.
Across the park, Ladybug had finally figured out what to do with the lucky charm. "Adder, Helmine, knock them down by that bench!" She yelled, pointing to the bench in question behind Guilty Conscience. It would've been better not to let the akuma know the plan, but there wasn't a way around it.
Adder got in a good shot with the crossbow, hitting Guilty Conscience in the thigh. They cried out in pain and clutched the area, leaving them open for Helmine to whack them across the torso with her staff, sending them flying backwards to slam into the bench. Ladybug ran over and quickly covered their arms and legs in superglue, attaching them to the bench.
Their fall had revealed a ring on a chain around their neck, which had swung out from under their shirt as they hit the ground. Chat Noir, whose mouth had been covered again by Adder, joined Helmine as Ladybug snatched up the ring and extended it in Chat's direction, unable to easily break the metal object.
A quick Cataclysm later, Ladybug swung her yoyo and caught the inky butterfly expertly, releasing the purified butterfly with her customary, "Bye bye, little butterfly." Chat slumped slightly in relief as they were freed from the compulsion to share their secrets, letting the red lights wash over them as all the damage was fixed by Ladybug.
The akuma de-transformed, revealing a young gentleman who looked as though he'd been crying. He was wearing a traditional suit and tie and clutching at the ring around his neck. The team exchanged a look before bumping fists, with Helmine and Chat immediately jumping away to return to their schedules before they'd be missed. Ladybug nodded gratefully to Adder, who would do his best to comfort the victim, and left as well
Adder listened sympathetically to the man, who talked about how he had found out that his partner was lying to him and cheating with a co-worker. The ring was a promise ring that they both had and the devastated man had wanted to reveal other people's secrets. Eventually, Adder helped them figure out where they were going to go and watched them leave the park before finding a safe spot to detransform.