Even more melodramatic. Don't flame me if it's not your thing.
"Where's my broom?"
"I'm really sorry. I accidentally tossed it into a tree."
"That's your problem. Figure out how to get the broom back."
"I'm going to class first. You, get the broom down and bring it to Class 3, Grade 11. Li Jun."
They became acquainted over a broom, and from then on used it as an excuse just to see each other. Their ordinary, even somewhat dull high school life grew sweeter and more fun because of a single broom.
Theme: School life is ordinary, but having you there makes it special.