A man who dies in a traffic accident is transmigrated into the world of [Echoes of Eternity], a game he had played for a long time, and into the body of Silver Pierce. As the kingdom's strongest knight, Silver has cheat-level stats, and that makes him one of the best characters to become. However, he is also a character who is destined to die trying to save the protagonist and his companions at the end of the very first chapter. The death event is unavoidable and if he just left his companions and ran away the world would be destroyed making it a certain game over. Determined to oppose his fate of dying, Silver plans to use his knowledge of the game to take the shortest route possible to clear the game. So, will Silver be able to survive his death events? The tenacious and strongest sub-character transmigration fantasy begins now.