Identify Searching for visual novel

Doboodle

New Member
Nov 24, 2018
7
1
Hi folks, I hope I post this in the correct section.
I am searching for a visual novel kinda game I have played years ago, but cannot remember the name.

It was about playing a dude who was a U-boot engineer. He and the rest of the crew were trying to
find something akin to atlantis during their trip. At the end of the game one of the girls on the ship
showed some kind of "special power" that let them to the place they were searching for.

Has anyone else played it/remembers the name? Thanks in advance for your help