Remains Rebirth v1.0 by Yumenamakonn

Once in the world something happened from which time stood still.
This story is about a man who was washed from the seashore into the ocean. And there were quite a lot of them.
The hero and heroines come to their senses on the shore. Where are we? How did you get here?
Now they have to understand where they have ended up and restore the work of the whole world.

This is an RPG game in which the hero and heroines do this by exploring various dungeons.