Sewer is a field map in Final Fantasy VII, visited during "Prevent the Fall of the Plate" by a party of Cloud, Aeris, and Tifa after falling from a trap set by Don Corneo. The three make their way to the Sector 7 Slums.
This sewer is located beneath Sector 6 and Sector 7, and is divided into two segments for each screen. The Sector 6 segment is connected to a trap door from Corneo Hall, and is where Aps resides. At its top-right corner is another trap door down to the Sector 7 segment. This segment is smaller, and leads to a manhole that exits the sewer out to the Train Graveyard's southern portion.
In "Prevent the Fall of the Plate", Cloud, Aeris, and Tifa first fight Aps before navigating through the sewers to Sector 7.
The encounters are the same in both segments of the sewer. The player will either encounter Ceasars or Sahagins. Though both enemies have relatively high HP and will take a few hits to defeat, they deal little damage on their own. Magic can be used to end fights more quickly, and Ceasars are weak to Ice.
The game has a hidden affection value that determines whom Cloud takes out on a date in Gold Saucer later. The outcome is determined by the dialogue and party member choices made prior to that point.
When the party lands in the sewer:
- Talk to Aeris first (+3 Aeris)
- Talk to Tifa first (+3 Tifa)
The theme "Lurking in the Darkness" (闇に潜む, Yami ni Hisomu?) plays in the sewers.