Unopened Treasure Buried in The Abyss

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Product Descriptions Solve the Mystery of the Legendary Navigator
"Adventure is the reason for my existence," once said a great artist.
The only clue to getting to the undersea city is a logbook he left behind.
Can you work with the "Investigation Team" that investigates the undersea city to discover the treasure left by Oceanus?
[Product Details]
* Only unopened products are purchased.