It is every martial artist's dream to become the leader of the Invincibles, a powerful group that rules over the martial arts world with an iron fist. One day, Yong-Yeon is given the chance to join their ranks. (Source: Toomics)

Upcoming webtoon. Taegoo has been hunting ooparts using powerful dark matter, loses everything, and is defeated by Hyunseong Choi, who is called a "fire demon." In order to take revenge, he gains even stronger powers and faces the secrets hidden behind his powers and ooparts.