(W) Tougoku Hudou (A) Takoyakiyoshi. There has to be a catch when a deluxe rental property is this cheap and this one connects to a perilous dungeon in another world! Far from being dissuaded* Tooru jumps at the chance to sign the lease* hoping to go from high school dropout to big-time adventurer. He soon encounters a stranded knight: a gorgeous young woman named Ria. Tooru rescues her and takes her back to Earth* where she promptly mistakes him for a Great Sage* seeing normal things like running water for evidence of his powerful magic. Tooru may dreams of heroism* but first he has to figure out how to share an apartment with a cute girl from another world!