Ura Dungeon Oku-san
裏ダンジョンおくさん
A frontier town is the site of a newly emerged dungeon filled with dangerous monsters and valuable treasures. Yui, a newlywed, is preparing to enter it while keeping a personal secret. She was once a level-99 martial artist who defeated the Demon King, but now lives as a level-1 housewife. Despite her new life, she finds herself drawn back into perilous adventures.