Isekai Okonomiyaki Chain: Osaka no Obachan, Bishoujo Kenshi ni Tensei shite, Okonomiyaki Fukyuu! (Light Novel)

Humanity’s strongest existence, obviously that’s auntie from Osaka!!! Thus naturally she’s reborn as different world’s strongest beautiful swordswoman!!! This is a story where past auntie from Osaka doing cheat while opening okonomiyaki store in towns and dungeons, an upstart who opens branch store one by one as the manager!!!