Whose family weasel is it?

Zi Han was what they call an extrovert. He was talkative, sociable, action-oriented, enthusiastic, friendly and out-going. But today he was drained of all energy and as he entered the hovercar he relaxed his muscles like a cat and leaned on his grandpa for support.

Zi Feiji was a little worried seeing him like this. The last time he was like this was because he hadn't slept well and had to go to school the next morning thus he passed out as soon as he got the opportunity.

"You seem to have slept well last night so what is the problem?" asked Zi Feiji continuing to allow him to sleep on his shoulder.

To be honest, he thought he would receive a call today that his grandson was in another fight. That's because he had a feeling that Zi Han in a girl's uniform would encounter a pervert or two but after waiting the entire day nothing happened.