Any stories of Isekai characters going back to there old self (They might spent years there and aged physically as well) back in there world in time period before being transported? Also they can keep there skills, knowledge and experience of what they did even if they have no magic.
There was one with a necromancer but I can't rember the name atm It's was Seoul Station’s Necromancer
Isekai character going back to their OLD self???? You mean like OLD man got isekai-ed turn into YOUNG man and after he defeat the demon king, he returned to earth and become OLD again??? is that what they call you're man of culture If their back to young self maybe first book The Chronicle of Narnia fit your criteria, never read the book only watch the movie so i don't guarantee the content
https://www.novelupdates.com/series/a-returners-magic-should-be-special/ https://www.novelupdates.com/series/returning-from-the-immortal-world/ And for something different, isekai boy returns as a man https://www.novelupdates.com/series...kiru-de-fathercon-musume-tachi-o-tororori-ni/
your grammar is confusing, i suggest you edit your post because a lot of us aren't sure what you're asking for: do you want MC to become younger (de-age) or do you want MC to grow older? do you want original world's time to reverse, or barely change, or change a lot? or do you want something else? some of these may fit your criteria: https://www.novelupdates.com/stag/returning-from-another-world/ Return of the Former Hero Isekai Shoukan wa Nidome Desu
I think my thought was i want the protagonist back into there original world with all the things he experienced in the another world like some sort of dream he just woke up after sleeping, so original world might barely change at all while the protagonist might spent years in another world?
Theres alot of series out there like Death March to a parallel world rhapsody, or I Alone Level Up. Im also working on a story that has alot of isekai type tropes called Dawn of the Requiem
i see, then kronesphir's suggestion is the best fit: The Hero Who Returned Remains the Strongest in the Modern World
https://www.scribblehub.com/series/80786/the-satisfaction-of--lifetimes-marigolds-reincarnation/ My own novel: - Female Mc - 100 lifetimes as cannon fodder before she returns to her own world - Uses knowledge to enhance her living situation - Romance - Face Slapping - Kingdom Building (Duchy)