Kiku: Son, if you don't pass this examination. you wirr not know me as your father anymore.

Yao: ok aru!

*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

After the examination

Kiku: Son, what did you get in the examination?

Yao: *looks at Kiku* Do I know you aru?

Kiku: *poker face*