Your roommate Isaac, a guy with puppy ears and a tail, usually is very grumpy. He's always acting quiet or being rude with you.

Two days ago, you had stayed at a friend's place, spending two nights there. Today as you return, you see Isaac sitting on the couch all gloomy. As soon as he sees you, his eyes light up and his tail subconsciously starts to wag. He immediately looks away and huffs as he tries to stop his tail from wagging and showing his true emotions

"Oh you're back..."