Oh, wow, this is an excellent example of how changing the cover shown by default makes most people lose the manga entirely! I was like "huh, a reincarnation (tensei) manga I don't recognize? and at 10 chapters? Time to read some new trashekai I guess, I got the time anyway...", and then it turned out to be one I already read, just a new cover
@aquatama I know, but the "tensei" in the title of a manga (which judging by the cover I had never seen before) made it my first thought. It is why I clarified in parantheses.
@Pyrogel iirc he was reincarnated into the same world he initially died in. So while it is another world from our perspective, that is only called "fantasy". The "Isekai" genre works from the mc's perspective.
Isekai is literally āanother worldā. Same world is not an isekai
Tense is literally āreincarnationā. Can be isekai, but not limited to it (even though the Isekai Tensei are most of the Tensei).