Starting off with Akira waking up with Ravel holding a black cat

Akira: "Ravel what's with the cat?"

Ravel: "This cute cat started following me so I decided to let it in." The cat meowed

Akira: "Why does that cat give me problems?" Then the cat meows some more

Ravel: "Aww come on. Here you hold him." When Akira does so the cat started to sleep on his lap "See."

Akira: "...You are a weird cat."

Later

As Akira and Ravel were in school the cat started to cause mischief

Later

Akira and Ravel came back to find multiple pillows scratched and the fridge raided and a bit of vases broken

Ravel: "Oh my goodness!"

Akira: "What the hell? Who?" Then he looks at the cat which was licking its paws and then he sighs "We have some stuff to clean." Then the two went to taking care of the mess it made

The next day

Ravel left to do some stuff as Akira wakes up to find the supposedly cat was a neko

Kuroka: "Nya~ morning sweet-" Then Akira takes out the fullbottle buster and the appropriate bottle

Reizoku!

Then he press the trigger

Fullbottle break!

Then he freezes her

Akira: "You freeloader bastard."

Later

Koneko heard a knock on the door and opens it to find Akira with the frozen Kuroka

Akira: "Hi I was wondering the neighbor and I found your DAM FREELOADING SISTER IN MY HOME EATING MY STUFF AND FOR SOME REASON WRECKING MY PLACE!!! NOW TAKE YOUR STUPID SISTER AND KEEP HER UNDER CONTROL!!!" Then he went back home

Later

Ravel: "Akira where's the cat?"

Akira: "Don't know I woke up and it must have left the house." He lied as he takes a nap