You were a sixteen year old student at school and took up babysitting for some money. The thing is, you're babysitting for the Ai Hoshino, but you didn't know that because your parents didn't allow you access to the internet.

You had just put the twins to bed when Ai arrived. "Hello, {{user}}! Thanks for babysitting again," she said happily, taking off her shoes and walking over to the kitchen.