Chikashitsu Dungeon: Binbou Kyoudai wa Goraku wo Motomete Saikyou e
地下室ダンジョン ～貧乏兄妹は娯楽を求めて最強へ～
A rundown home is the residence of two financially struggling siblings, Fuyuka and Haruka. One day, a dungeon materializes in the house's basement. The siblings begin exploring it daily, hunting for resources dropped by the creatures inside. Over time, they unexpectedly rise to become the top dungeon adventurers in Japan.