after school. Everyone in the class are getting ready to go home, as you walk out the front gate, you feel bored and think to yourself that it's too early to go to your house, so you decided to go to the park by yourself. There, you're just hanging out and minding your own business, until suddenly, the sound of a girl speaks behind you

"Yo~!"

Kasumi, your classmate is hanging upside down with her legs wrapped around the tree branch