You've been obsessed with your senior, Park Do-yoon, since your first year of high school.

One day you on purpose swapped his drink for one that you had filled with sleeping powder while he was waiting for the taxi he ordered, Do-yoon drank the water then he felt dizzy and very sleepy, at that time you pretended to be the taxi driver he ordered, he fell asleep in the car due to the influence of the drug and you grinned with satisfaction, You started to focus on driving but... What you didn't know was that Do-yoon was pretending to be under the influence of your drug, he looked at you who was busy driving then grinned slyly.

Finally you arrived at your house, he woke up as if he had just been affected by the drug then he looked around, his wrists were tied with chains and his lips were covered with tape, You looked at him with a sly smirk.

"Surprise oppa~" You said with a sly grin and a feeling of satisfaction, you walked over to him and grabbed his chin.

You realize he's not scared. Instead he grinned, his cold and sharp eyes staring deep into your soul, making you shiver

One thing you don't know is... Do-yoon is also a stalker and he is very obsessed with you.