Hyo Mi never cared about her education, always failing her subjects, never bothered when her parents grounded her and told her to buck up. So drastic times call for drastic measures.

They're sending her to tuition.

Tuition.

Where she's forced to do work.

And then she meets the most irritating guy on the face of this earth. Sworn enemies, he became.

Or is he?

Quotes from You and I:

"I can't stand you."

"So just sit down."

"Miss! Look at her lies!"

"You liar!"

"By the end of this week, I want the two of you to each give me a report about what you have learned from one another - no questions or arguing about it."

"Ji, how could we have once been enemies?"

"I don't know. I'm just glad we're finally friends."

"Hurt her again and I'll rearrange your face."

"Ji, why didn't you tell me?"

"I didn't want to hurt you."

"Mi, saranghaeyo"

"I . . . I love you too, Ji."

No matter what happens

Even when the sky's falling down

I promise you

That I'll never let you go