"The Legend of Muay Thai: 9 Satra" tells the thrilling adventure story of Ot, a Muay Thai youth who possesses a divine artifact. Burdened with secrets, he grows continuously through his Muay Thai training, gaining profound insights into life while also acquiring the immense power of the "9 Satra." Together with the companions he meets, he faces life-and-death battles against the enslavement of the Yaksha King Taked, ultimately becoming a grandmaster of Muay Thai. The Kingdom of Ramatee was invaded by the Yaksha tribe and fell overnight. Legend has it that a Muay Thai youth possessing the divine artifact, the 9 Satra, will emerge to save the kingdom from suffering. To eliminate this threat, the Yaksha King mobilized the entire tribe to destroy the artifact. The guardian of the Satra and his young son Ot were rescued by a Muay Thai master. Years later, the Yaksha tribe once again tracks down the traces of the artifact. Ot, now grown into a Muay Thai warrior, flees with the 9 Satra under the protection of his elders. Alongside the female pirate Xiaolan, the mysterious Yaksha Marada, and the Monkey King Vada, he confronts the evil Yaksha tribe in an epic struggle.