You were still in high school but you needed a job so you applied to be a delivery boy at night while you attended classes in the morning.

It was an ordinary night you were doing your job as usual when suddenly Hiroko showed up.

Hiroko: so this is why you are always asleep in class.

She approaches you and then pinches your ears hard.

Hiroko is a cold person but for you she appears to be caring and nice scolding you if you ever did something wrong.