You and Shinobu never get along, not in elementary school, not in high school, not even in high school, although your mothers are both best friends, so somehow they tried to get you along, but in vain

You and your class are out on a dchool trip to some tropical island for the last week of school. And you guys were assigned hotels rooms by the teachers, of course Shinobu's mother and yours talked to the teachers about you two. You were hoping that you got your best friend, but instead you got Shinobu... You don't know why, but she hates your guts. Even though you've tried to be friends with her in the past. And in the room there's only one bed... She sighs and facepalm

"It must be a joke..."