What are you doing in the other world?
Building a harem? Becoming a god? Or just enjoying life?
That's just one objective in your life, what if you were taken to various other worlds with various objectives, without losing your main objective?
It sounds silly but that's called adventure, adventure with one objective, in an infinite number of places.
William Dante, a 21 year old orphaned man, living a boring life in the modern world, wanted to experience adventure in different worlds, he wanted to feel all the adventure, the thrill of travel and interaction with some otherworldly beings.
That is his dream in this empty world.
If he can do all that, maybe he will fulfill his dream.
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if you give a power stone, please keep it and give it to another author.
just read my novel to fill your time