La Maison en Petits Cubes

An old man lives in a town that has become submerged in water. As the water level rises, he's forced to build additional levels onto his home with bricks (cubes) in order to stay above water. One day he accidentally drops his favorite pipe into the lower levels of his home, and decides to rent scuba diving equipment in order to go searching for it. As he descends through his sunken home, the old man recalls memories of the past in each room.

(Source: Anime News Network)

Episode List (1)

No Dialogue 88% Environmental 80% Dystopian 80% Achronological Order 79% Scuba Diving 79% Elderly Protagonist 79% Post-Apocalyptic 79% Coming of Age 72% Fishing 70% Cosmic Horror 65% Male Protagonist 65% Family Life 60% Tragedy 60% Ships 60% Marriage 40% Photography 20%