Poseidon
- Person - shirahoshi
- Ship - Noah
- Creature - sea kings
The other 2 weapons probably follow the same theme of person controlling creatures to use ship. Tho the name applying to a different thing each time for some reason
For example
- Poseidon is the person
- Pluton is the ship
- Uranus might be the creature/s
Pluton
- Person - momonosuke
- Ship - pluton it potentially being a submarine or something that can dig through the ground
- Creature - zunesha and its family like the thing in the Florian triangle. The red line separating them from each other
Uranus
- Person - a sky person probably royalty
- Ship - a flying ship it being a straight up plain or helicopter would be kinda dope ngl
- Creature - might be referred to as Uranus. Maybe 16 dragons or a 16 headed dragon or something
- Imu maybe taking it over and forcing it to do their bidding
All 3 ancient weapons working together to destroy the red line maybe