>>280670330
There sort of is one

Setup for this is a guy gets shanghaied by an unseen god who forces him to go through 100 different Isekai worlds with the following conditions
>Has to spend at least 6 months there
>Needs to become a trusted party member to their world's hero
>Needs to be removed from the party once the first two conditions are met
Once he leaves a world he gets a new permanent skill, though any alterations to his physical body get reset every time
The story starts with him clearing world 100 and getting the chance to go home but part of the return method requires he revisit one world so he goes back to world 1. He finds out that his party members all died a few months after he left except the elf who tells him what happened. The skill he got from world 100 lets him restart his trials from world 1 but keep all his memories and skills. So he does and that's the setup.

He's not lost like in Sliders. He knows exactly how to get home. But it is a series that relies on going to multiple isekai worlds