Sister, take care of your back.

# 5

김태형

I know that part, so can I explain it to you? I can explain it better than this person.

김여주

Really? But math on our first meeting?

김태형

This isn't my first time

김여주

Um... Oh... Is that so...? If you could tell me, I'd be grateful><

김태형

Look, if it's convex downwards, there's a minimum, and if it's convex upwards, there's a maximum.

김여주

Huh? Really..!

김태형

So now you know? (smiles)

김여주

Oh yeah..

김태형

Then I'll go

김여주

Huh..already..??

김태형

I have plans with a friend. Have fun.^-^

김여주

Oh, then... could you give me your number? I can buy you coffee sometime.

김태형

Um.. yes here

김여주

Thank you!

The female protagonist screamed in joy as soon as Taehyung left the library.

김여주

What should I do~ I got a phone number from a handsome guy..!!

민윤기

Hey, heroine, shhh..!

김여주

ah....///

민윤기

But when are you going home?

김여주

I'm going to go soon too

민윤기

Oh, should I take you?

김여주

I don't really care lol