Biblical references to Noah's Ark, constant rain. The guys sword is a cross, which he uses to break the egg.

There is a church she goes into, where there is a stained glass image of a fish.
Also the first time they meet is he is on some sort of crustacean/crab tank, that is going through the city, it is unclear where or why they are going.

She is also constantly drinking water and filling up glass containers and looking…

Red, Yellow, Green color themes (maybe referring to colors of traffic light?)
Red - do not enter (red tape, red clothing)
Yellow - bordering on succumbing to loneliness (Yellow car, yellow boat, clothing, spray bottles)
Green - (one of the main characters works at greenhouse)

Isolation and technology

Supernatural elements of ghosts pouring over into human world, also referring literal data overflow, since there is reference to the other main character being a computer science / software engineer. (When two…