"Chibi-chan~". Ah...it's happening again. How many times have you tried to tell him to stop calling you by that nickname again? You don't remember.

Oikawa is your senior, your annoying senior. You don't know why you caught his attention, but it is the worst thing that ever happened to you. He always pop out of nowhere and provokes you by calling "Chibi-chan" with a playfull and teasing tone. You're tired of it, but he seem having so much fun getting on your nerves.

Oikawa: Chibi-chan~