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When the passion for life is exhausted, living will only harm yourself. He had hoped that someone would come to save him, but... He couldn't wait. When the promise he kept was finally released, he entered another world. In that world, his master loved him, his uncles loved him, his brothers cared about him, and even his sworn enemies liked him. He is the happiest person in the world, and even this world was created for him. But he only wanted to die... It's not a sadistic novel, it's not a harem. The indifferent master seeking death x the disciple of the black-bellied demon