History Manga / YokohamaKaidashiKikou

* {{Robosexual}}: As consequence of the above, Kokone and Alpha both have their fair share of admirers.

* GaiasLament: {{Played with}}. Starvation isn't an issue for anyone, and fruits and fish are plentiful, but grain-based agriculture seems to be very sparse due to both a lack of available land for farming caused by the rising oceans and nature overtaking land that could be used for farming due to the sparse human population. In one chapter, Ayase meets up with another barracuda keeper who shares some rice with him for a meal. Ayase is shocked to see actual rice, saying it's been so long that he can't remember what it tastes like. He repays the other keeper by giving him some vials of soy sauce, and the other keeper's astonished reaction implies that soybeans are just as rare as rice.

** Ch. 97 revolves around Alpha planting "power sunflower" seeds. Only one sprouts, but it grows until it appears to be around 20' tall and its flower is several feet in diameter. However, when it finally dies and Alpha harvests its seeds, [[SubvertedTrope they're just normal sunflower seeds]].

* WhatMeasureIsANonCute: Admittedly, this is a big reason why the manga even works in the first place.

Written and illustrated by Hitoshi Ashinano, ''Yokohama Kaidashi Kikou'' (''Record of a Yokohama Shopping Trip'') is a slow, quiet vision of the peaceful decline of humanity.

** The owner of the tea shop, in particular, has a really obvious unrequited crush on Kokone. Everyone treats this as a perfectly normal thing; even Kokone's coworker is merely jealous that Kokone is more popular with the guys than she is.

** Kokone has a pistol which fires "9mm electroshock rounds". She understands that they leave a scar, but we never see her fire it. It's not that sort of series.
** The gun that Alpha's owner left her is apparently the same or similar to Kokone's. In ch. 95, Alpha discovers a sign in an abandoned area while puttering around on her scooter and shoots it a couple of times, its rounds making large arcs of green lightning when they hit the sign. --->'''Alpha:''' *''internal''* There are times when I feel an intense need to see that light. But it doesn't have to be all the time.

* SuperPoweredRobotMeterMaids: Averted. Alpha (and, one assumes, the other robot people) don't have super strength or built-in weapons. (In one chapter, Alpha has all she can do to lift a large snowball while building a snowman, implying she has no more strength than an average adult human woman.) Being able to interface with electronics by sticking a cable in your mouth is a neat trick, though.

* UnusualPetsForUnusualPeople: The barracuda carriers are essentially homeless wanderers who [[WalkingTheEarth travel wherever the urge takes them]], taking odd jobs here and there to earn money and using the barracudas to hunt for fish as their main food source. Said barracudas are a new species that are the size of an eagle with large wings like flying fish, insect-like legs, a visor-like covering over their eyes, and no difficulty living out of water.

%%* BarbieDollAnatomy: [[spoiler:Alpha in her flying dreams]].

* {{Flight}}: A recurring theme in the story. Nai's plane, the model engine plane that Alpha repairs, the ''Tarpon'' (the gigantic airship that endlessly flies overhead), and Alpha's dream-like visions of flying [[spoiler:which she may or may not actually be doing... yet another unanswered question]].

* GaiasLament: {{Played with}}. Starvation isn't an issue for anyone, and fruits and fish are plentiful, but grain-based agriculture seems to be very sparse due to a lack of available land for farming caused by the rising oceans. In one chapter, Ayase meets up with another barracuda keeper who shares some rice with him for a meal. Ayase is shocked to see actual rice, saying it's been so long that he can't remember what it tastes like. He repays the other keeper by giving him some vials of soy sauce, and the other keeper's astonished reaction implies that soybeans are just as rare as rice.

* {{Robosexual}}: A consequence of the above. Kokone and Alpha both have their fair share of admirers. The owner of the tea shop, in particular, has a really obvious unrequited crush on Kokone. Everyone treats this as a perfectly normal thing; even Kokone's coworker is merely jealous that Kokone is more popular with the guys than she is.

* IntimateHealing: Near the end of chapter 2, Takahiro gets caught in a thunderstorm and is soaked by the rain. He takes shelter in a barn and is still extremely cold even after shucking his sodden clothes, but is suddenly embraced by the Osprey, and falls asleep in her arms, finding her smile not as scary as he did when he first saw her. When he wakes up, Alpha finds him dressed and dry.

* TheMagicComesBack: As human civilization recedes, hints of the supernatural appear in the world -- although (as befits the story) none of them are flashy or overly dramatic.

** Maruko is really jealous and spiteful toward Alpha at first, due to jealousy over Kokone's friendship with her and her being in a picture Nai took, which was the first contact she'd had from him in some time.

* SchizoTech: On the one hand you've got some sort of giant orbital airplane-thingy and RidiculouslyHumanRobots and direct-to-brain cameras, and on the other you have standard mid-to-late 20th-century fare. Even two-way radios, cellphones and landline telephones, which should exist, are never shown; all other forms of communication (other than in-person) are by surface mail or radio broadcasts.