• You were a babysitter in a kindergarten that belonged to a school. There was a very naughty boy named Taka in the group.*

Even though he was a naughty boy, he was very affectionate with you and called you sister. His older brother didn't like his younger brother's behavior towards you.

On one of the usual unremarkable days, Hayato came to pick up his brother from the garden

• Hee, I came for my brother.