Porn Game: AXL - Curio Dealer (jap)

Story - Tower of town Rajasthan. A city located at the foot of a huge tower which is so high as to reach the heaven that the ancient civilization had made.
Major industries are "adventure" and "treasure" In the tower, machines and tools unknown even in principle are rolling like mountains even in the present age.
Every one of them is a treasure that produces a lot of money, but robots that also move with the technology of the tower wander and try to eliminate intruders.
It is the job of "adventurer / upper" to collect treasure from such a dangerous place and take it back to the town.
The hero is a young man who runs antique dealers in this town.
Main work is to repair or appreciate the treasure the adventurer brought back from the tower and pricing. My greatest grandfather who died in the city passed away, and I succeeded but the days I worry about not being like the previous generation.
It was a girl who came to visit him like that.
The girl had a huge sword.

AXL - Curio Dealer (jap) game preview

online.