Azur Lane: The Cruise Ships of the Pacific

It's been about 50 years since the MS Harmony of the Seas and the MS Symphony of the Seas were launched. The cruise ships have now exceeded their lifespan. The once luxurious and beautiful cruise liners are now nothing more than floating wrecks full of rust.

The two ships, along with the MS Aegean Explorer, a smaller cruise ship of the Red Sea Cruises that has also been in service for 50 years, are now being towed to the naval scrapyard to be decommisioned and then sunk as artificial reefs.

Suddenly, a storm occurs in the area and all contact with the ships and their tugboats is cut off.

Unbeknowst to everyone, the three cruise ships have now been teleported to an alternate WW2 universe where the seas are ruled by the alien forces called the Sirens.

Now, the three cruise ships have been given a second chance to reside in this new world. A world where war has taken over the seas and the skies.