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A black company employee in his 40s, Namba Kazu, died of overwork and was reincarnated to another world. After saving the world, he returns to find himself regressed to his 17-year-old self. Kazu realizes that he can use the abilities he acquired fro

Takayanagi Riku is a 32-year-old office worker with no particular characteristics.He actually has a special past in that he once saved another world as a hero, andnow he lives in Japan as an ordinary office worker. But one day, hegets caught up in a