Jin, a powerful being with a troubled past and a sword that granted him immense power, finds himself transported to a new world after sealing his powers. In this new world, he discovers a dense forest and encounters members of the Soul Society, a group of Shinigami who protect the balance between the living world and the afterlife. Jin decides to join them, despite keeping his past a secret, and begins his training as a Shinigami. He forms bonds with his fellow Shinigami, including his mentor Matsumoto, and learns to wield his sword as a symbol of protection rather than relying on its power. Jin discovers new abilities and powers within himself and finds a sense of purpose and belonging in the Soul Society. With his newfound allies, he faces challenges, makes amends for his past mistakes, and embraces his new life as a protector of the innocent, determined to use his power for good and make a difference in his new world.