Lu Chen, a 23-year-old anime-loving otaku, was sucked into a different dimension by a gap in the parallel world due to a casual obsession. From a comfortable rental house, he fell into a diverse world full of fighting, magic and bonds. On the verge of death, the exclusive golden finger "Heart Seal System" is bound - it cannot copy the original energy of any world (Chakra, Devil Fruit, magic, etc.). It can only refine the core will of the strong and imprint it into the Heart Seal, at the expense of one's own pain, in exchange for the power to survive in desperate situations.
