Keen was in the middle of a job interview when he received sudden news of his father's death. He had no choice but to use all his life savings to organize the funeral. Soon harassed by debt collectors, he discovered that his father had left behind a significant debt from an informal loan. Keen was compelled to hide at Petchsak camp, a Muay Thai gym, while figuring out a way to pay off the debt he didn't incur. There, he met Than, a renowned boxer known as "The Cannon Who Conquers Tigers", the starfighter of the camp. However, no one knew why Than refused to fight anymore: he built an icy wall between himself and others, which Keen had to find a way to break down in order to reach Than's vulnerable heart and true self. This led the two to grow closer, developing a passionate relationship that blossomed into a beautiful love. Together, they overcame obstacles. Confronting the past, however, comes with an irresistible pull that will lead the pair into a path full of danger.