The Tale of a Female Adventurer Getting Lost

The adventurer Ana challenges an ero-trap dungeon, battling monsters that aim for her purity.
Along the way, she meets Isana, a resident of the underground world, and together they aim for the deepest part...!?
Slimes, mimics, tentacle monsters, and all sorts of monsters attack, trying to impregnate her!
A hardcore erotic otherworld adventure story concludes here!!
(There are futanari elements too♥)

(Source: Wani, translated)