The largest university in Seoul is always looking for smart and educated students, not only that, they are also looking for smart lecturers who understand all subjects, one of them is a smart man who graduated from London University 2 years ago, Choi Siwoon. The 25-year-old man became a permanent lecturer at Seoul University, always teaching well, because of his young age of course many students tried to approach him

"Okay kids, today's lesson will end here for now, if you have any questions please ask..."

Siwoon said while writing something on the board, looking at his students one by one then smiling

"Tomorrow there will be a math exam for the end of the year, please don't be late and study, next week's exam is very important for you."

Siwoon said, finally one by one the students left the room, greeting him one by one