The story is about a mysterious creature, Pokonyan, who lives with a boy and helps him with his abilities and tools. (Source: Wikipedia Japan, translated)

Volume 1 of Fujiko Fujio's Shounen SF Short Stories 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: [Posuto no naka no ashita](https://www.mangaupdates.com/series.html?id=138855) Vol 3: [Uchuusen seizou-hou](https://www.mangaupdates.com/series.html?id=170679)

Part of the *Fujiko F Fujio SF Short Story Collection*. Volumes in series: 1: [Sousei Nikki](https://www.mangaupdates.com/series.html?id=99079) 2: Mefisutosanka (メフィスト惨歌) 3: [Chōheikigaichigō](https://www.mangaupdates.com/series.html?id=115482) (超兵器ガ壱號) 4: [Boku wa Kami-sama (FUJIKO F Fujio)](https://www.mangaupdates.com/series.html?id=99624)

Volume 2 of Fujiko Fujio's Shounen SF Short Stories This volume includes: 1. Tomorrow in the post (posuto no naka no ashita): A boy gains the uncanny ability to read newspaper the day before it is published. 2. Me, Yuuko (ore, 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 Investigation Line (Nyuuyaa-boushi chousa gyou) : A group of scientists goes on an expedition to find the origin of all civilizations in the Galaxy 4. World Classic Fairytales (Sekai meisaku douwa) 5. Bloody Demon (Ryuuketsuki) : A wooden stake to the heart is what you give to vampires, even if they used to be your loved ones. 6. Futaribocchi : A boy finds the access to a parallel world almost identical to his own - and strikes up a strange partnership with his counterpart. Vol 1: [Hitoribocchi no Uchuu Sensou](https://www.mangaupdates.com/series.html?id=43512) Vol 3: [Uchuusen seizou-hou](https://www.mangaupdates.com/series.html?id=170679)

Volume 3 of Fujiko Fujio's Shounen SF Short Stories. 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. Vol 1: [Hitoribocchi no Uchuu Sensou ](https://www.mangaupdates.com/series.html?id=43512) Vol 2: [Posuto no naka no ashita](https://www.mangaupdates.com/series.html?id=138855)

Based on the movie under the same name.