My Save Point Runs on Wheels

Erine, a burned-out office worker, dies at her desk just one save file away from unlocking the hidden true ending of the otome game 'Mirai-mirai.' She wakes up as a sentient AI food truck, the game's comic-relief NPC, only to find that the villainess Helena has already been exiled months ahead of schedule. Someone else is playing the game, armed with the same insider knowledge. Erine must feed hungry customers, gather fuel to keep her human avatar running, and stay ahead of a rival reincarnator rewriting the story in real time, all while the villainess she is trying to save slowly notices that her new 'friend' knows things no stranger possibly could.