Grandpa

Upon reaching home, Zack and Yuri were greeted with a yell the moment they stepped through the door.

"UNFILIAL KIDS!!"

Zack and Yuri's mouth twitched, trying hard to hold back their laughter as they saw their grandfather sitting in the living room, holding his cane and staring at them. 

He was trying to look intimidating, but with his little pout, unkempt hair and skewered clothes … well, it didn't scream 'scary man' at all. It was obvious that he had fallen asleep on the sofa and had got up quickly upon hearing them come home. 

But the twins played along.

He was, after all, the only relative they had left. Their father had long passed and their mother was not well, so only their slightly senile grandfather lived with them.