isekai /ˈiːsəkaɪ/noun 3verb 2forms 4 noun3 •A genre of Japanese fiction involving everyday people transported to alternative fantasy or virtual worlds.It's not every day that an isekai author gets published out of the sea of isekai stories on there. — 2017 •A genre of Japanese fiction in which the protagonist is reincarnated. •Any piece of media in the above genres. verb2 •(slang) To transport (someone) into an alternative world, often by killing them. •(euphemistic) To murder (someone), to kill (someone). formsisekai'd · isekaied · isekaiing · isekais