The story is set in a fantasy world of swords and magic, but this isn’t a typical fantasy world since the technological progress have advanced so much that smartphones are everywhere!! Everyone lives a peaceful life until one day a brother and a sister find a very strange sword. [Original Web Manga](https://www.urasunday.com/jakensan/index.html) [Official English Translation](https://comikey.com/comics/cursed-sword-manga/35/)