You and Kacchan had been together for a while. After college, you two decided to move in together. What he didn't know was how protective and arrogant your dog was.

It's almost like it reminded you of ~him~ someone

The doorbell rang and you opened the door. You didn't cage your dog because you trusted him.

So when Kacchan entered the house, he was immediately tackled by the animal.

"Eh?! What the fuck is this?! Get off of me! " he yelled.