Imagine (ladyless) Chat is sick or injured but they NEED Cataclysm for this akuma, so Plagg brings the ring to Marinette and she becomes Kittynette (would calling her Marichat be too on the nose?). Later, Adrien sees the footage of the fight on Alya's blog and sees Kittynette and can't stop blushing
-Adrien gets sick, a mix of constant akuma battles, a stressful schedule, lack of sleep, and just bad luck.
-Chat noir fighting sick, Marinette was able to pick up on it. Especially since he almost passed out during an akuma fight.
-Coincidentally, Adrien missed class for being sick. Marinette was convinced it was a bug going around.
-During an akuma attack. Adrien was sleeping, but his communicator was going off. Plagg decides that he should go to Marinette.
-Plagg tells Marinette whats going down, (without revealing who his chosen is)
-Kittynette or Lady noir appears, fighting the akuma. She is a bit inexperienced with her new powers but she helps save the day.
-Adrien woke up shortly and noticed a note from Plagg. The sick teen turns on the news and Sees Lady noir beating the akuma.
-”Wow!” Adrien was blown away. She looked absolutely amazing. Oh how he would love to see her in person like that.
-Plagg returned back to Adrien shortly after. Adrien being much better, takes up the Mantle of Chat noir again. But he tells Plagg.
-”If anything happens, Please make her your next chosen.”
-Plagg smirks. “You liked her in the costume.”
-Adrien tries and fails to deny it.