My Childhood Friend Turned Yandere in the Apocalypse

Rinwasonlyfiveyearsoldwhenherealizedthetruth—hehadbeenreborninsideanapocalypsenovel.Buthewasn’ttheprotagonist.Hewasn’tevenasidecharacter.Hewasjustan‘extra’—awealthy,resourcefulchildhoodfriendofthestory’sheroine…agirldestinedtobedraggedintothemaincharacter’sharemanduseduntiltheend.Rinrefusedtoacceptthatfate.Iftheworldwasgoingtofallapartanyway,thenhewouldchangethestorybeforeitevenbegan.Hewouldmakeherstronger.Independent.Someonewhocouldsurvivewithoutrelyingonanyone.Thatwastheplan.…Butsomewherealongtheway,thingswentvery,verywrong.Becauseinsteadofbecomingan“independentandlovelywoman”—ShebecametheNo.1hunteroftheapocalypse.Andshe’scompletelyobsessedwithhim.Withasoftsmile,shegentlyasks,“Rin,whereareyougoing?I’llcomewithyou.”Whensomeonegetstooclose,hersmiledoesn’tfadeasshesays,“Whoisthis?ShouldIremovetheseannoyancesforyou?”She’sstrong.Beautiful.Unreachable.Andutterlyterrifying.…DidIdothis?DidIcreatetheverymonsterI’mnowtrappedwith?