By the mid 23rd century, the foolish decisions of mankind have led to the collapse of Earth's environment; humanity and all life on Earth are extinct. In the hopes of someday restoring the world to what it used to be, man, before being wiped off the face of the planet, built an immense tower. Inside lives Louis, a supercomputer charged with keeping the DNA of all living things safe until a time comes for it to be released and restored. This is his story - a story that spans millions of years and beyond.
The world is never quite the same once we grow up. Villains and robots that once ran rampant in our imaginations are reduced to drawings in Manga, and our lives are distilled until there is little left but the daily grind; so it has been for Kenji. After a childhood of dreams he now runs his late father's liquor store and is raising his sister's child. The memories and friends from his early years bring him some happiness, but they become tainted as a string of murders find connections to his past. Kenji and his friends must now fight to save the future from their past and unravel the mystery of "Friend."
One long series and a oneshot. Possibly a silly recomendation to make, but considering the short length of Hotel, the amount of epicness it achieves (for a oneshot) is comparable to 20th Century Boys. Though 20th is certainly the more epic of the two, if you enjoyed one of these then let your mind be blown by the other.
Hotel (from the full volume) and I Am a Piano (from Le théâtre de A) are slightly somber one-shot manga about anthropomorphized objects, their "lives", their relationships with the humans around them, and how they would feel if they could. Visually, they are on complete opposite ends of the spectrum, but both are very attractive.
It’s the year 1967 and while the Apollo space missions are getting underway and the US are deploying soldiers to Vietnam, a disenchanted student heads home with a broken heart and an empty wallet. On the trip the self-confessed science fiction fanatic meets a mysterious girl who calls herself Emanon. However, while she may seem like an ordinary girl, Emanon claims that even though her physical body is that of a seventeen-year-old, her mental age is over three billion years old. With memories dating back to the single-celled organisms at the beginning of the world right through to the present day, Emanon curses her ability and wonders why a person with such an encyclopaedic knowledge of history should even exist. Now, as the student talks more with Emanon, he begins to realise that reality truly is stranger than fiction.
Hotel and Shingo are about a hotel and robot who, over time, go beyond that of normal processing and start contemplating existence. If you like the idea of technology taking on human conscience, then enjoy.