King of the Octagon

Hwiseong Lee, who was once a promising athlete with his gifted athletic abilities in high school, works part-time at a convenience store. One day, he is invited to an MMA event which eventually leads him to a new adventure. After visiting the Octagon for the first time, he feels overwhelmed by what he has just witnessed. How will his life change as he begins training, and will he rise to glory as an MMA fighter?

The thrilling MMA conquest of a rookie genius fighter

Wheesung, who was a promising sportsman with a natural sense of
movement, quit exercising in high school due to an injury and lives a part-time life.
In the meantime, he is invited to the match of MMA amateur Junghwan …
He feels a strong thrill at the power of ‘Octagon’ that he encounters for the first time.
22-year-old Hwi-sung Lee, who was busy running away after giving up on everything.
The moment he climbs into the Octagon, a spectacular flight that no one expected begins.