A guy who have a good and happy life who suddenly appeared in another world but its not your typical isekai in a world of sword and magic instead he got transmigated in a world of his other version but in this one he didn't enter or replace his version of this world which means he got transported to that world and in that world his other version is still alive and its gender instead of a boy its a girl, and he who have a happy and good life got transported to this world but this version of him didn't have a very happy and succesful life and it was the other way around which means that his version in this world never have the chance to be happy and living a good life in this cruel and harsh society of today.
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