Betray Me Not


Oh Hana is the Professor of Advanced Calculus at Seoul National University. Her secret?

She's only 19 years old.

Kim Kai is filthy rich, adored by all, and extremely arrogant. Although he is only a mere student, his power enables him to rule his Seoul National University with an iron fist. 

What will happen when these two paths cross?


Kai's story begins in Advanced Calculus one blazing August day. It is the first day of the fall semester. Already he has been receiving party invites, welcoming pats on the back from former teachers, and flirty winks from admirers. For a mere sophomore at Seoul National University, he sure is hanging high off the rungs of the social ladder.


"Aye, Kai." Kris, one of his best friends, high-fives him as he walks into Advanced Calc. "You're in this class too? This is gonna be a blast." Behind him, Kai sees everyone in the room perk up at the sight of him. A few people wave or smile.


Kai grins. "Definitely." He is about to say more, until the rapping of a ruler against a whiteboard cuts him off.


"Glad to see everyone here," the stern-looking professor intones.


Her hair is pulled up into a tight black bun, her eyes scanning the rows of students with a hawkish stare.


"I am Professor Oh. This is my first year teaching, but let me assure you: I am more than competent. I obtained my Bachelor's and Master's degrees from Yale University. Then, I graduated from the Massachusetts Institute of Technology 2 years ago with a phD in Calculus. I've participated in international math forums, and won a prize for a theoretical proof I wrote."


Eyebrows shoot up, slight gasps punctuate the silence. Damn, Kai thinks. She's smart. It's obvious that this lady is not to be messed with.


"There are 4 rules in my class," Professor Oh continues. "One: I don't accept late work, so you'd best get everything turned in when it's due. Not a second late. Two: all work will be done in black ink. Anything else will be thrown away."


"What the hell," Kai mutters.


Professor Oh's head swivels in his direction. "Third, there will be no talking when I'm talking," she says while boring her eyes into Kai's. "I am to be given the utmost respect. " Kai narrows his eyes.


"Finally and most importantly, I am always right. Questions?"


Professor Oh is met with rather terrified shaking of the head from everyone- save for one student.


Kai's arms are crossed.


Click here to read "Betray me Not" in Russian (thanks, helen_kei!) 

Click here to read "Betray me Not" in Arabic (thanks, Doneyoul!)

Here are some amazing posters made by awesome people! :)








Listening to the news about this 10 yr old boy from california who just got his high school diploma :^)

Comments (3263)

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Chapter 41: more about suho!!
sopdud13 #2
Chapter 10: lol the author's note
sopdud13 #3
Chapter 7: okay... wtf jongin...
Hello authornim!! This story is literally great. You have a really good sense in fluffiness and its make me all giddy inside. It takes me only a day to complete reading this fix. Its shows that it is easy to read even though I feel like to punch Kai at the face for being a jackass in the beginning. I love how forgiven is sehun's character is. So much big brother feels lmaooo. Thank you for giving an effort to write a good story . keep up the good work! You can do it authornim!
ctnajihah #5
Chapter 41: <3<3<3
Chapter 41: Ahhh! My heart! One satisfying story indeed!!!

Thank you for this wonderful piece of work authornim! I can't wait to read the rest of your fics! Hahaha.
wooo im gonna read this again before my sem starts tomorrow bc why not???
revolamard #9
Chapter 40: This was a really cute and funny story. It was well written and enjoyable to read. It seemed to have a good balance of angst, comedy, and cute moments. Definitely gonna reread later in the future!
168 streak #10
Chapter 39: Aw my ghad! This is just so awesome!!! Dang! Such a nice read!