A collection of 17 oneshot written by Fujiko F. Fujio and first published in 1983. Most of them have sci-fi themes, with a couple of spiritual/supernatural stories in the mix.
Vol 1:

1. Solitary Space War: A boy is picked as Earth's champion to fight in a proxy war, with the fate of his planet at stake.
2. Commerce Monkey
3. The Good-Natured Ghost
4. Future Thief: Dissatisfied with his current life, a boy agree to exchange his youth for a large fortune.
5. Miraculous Belief: Lost in his own world, a boy breaks the barrier between the real and the imaginary.
6. Koibito Seizouhou: Thanks to an alien's help, a boy makes a clone of his crush and raises her in his room.


Vol 2:

1. In Tomorrow's Newspaper: A boy gains the uncanny ability to read newspaper the day before it is published.
2. I, Yuuko: After visiting the home of his female classmates who dies recently, strange things happen to a boy's body
3. New Year's Star Expedition: A group of scientists goes on an expedition to find the origin of all civilizations in the Galaxy.
4. World Classic Fairytales.
5. Vampire: A wooden stake to the heart is what you give to vampires, even if they used to be your loved ones.
6. The Two of Me: A boy finds the access to a parallel world almost identical to his own - and strikes up a strange partnership with his counterpart.


Vol 3:

1. Uchu Kara no Otoshi-dama
2. Anko oini kokoru
3. Island of Extinction: One day a fleet of UFOs suddenly appears and lays waste to the Earth, almost wiping out humanity overnight. A couple of student stranded on an island is among the last survivors.
4. Yamadera Gurafiti: A man catches a glimpse of a girl who looks just like his childhood sweetheart, who is no longer in this world.
5. Uchusen Seizouhou: A group of people stranded on an isolated planet has to decide if they want to risk their lives using a damaged spacecraft to return home.