Allen Rhodole was despised by the others as the “inept swordsman”. One day, he got embroiled into a duel against genius swordsman Dodriel with his withdrawal from the Swords Academy on the line. Drowned in despair at the unwinnable battle, he unknowingly came across the “Hundred Million Years Button”. It was a cursed object which trapped the user in a bubble of time of a hundred million years with a press of a button!? On the contrary, he took it as a chance and spammed the button, spending billions of years training the sword—and honed the ultimate skills of the blade! He then defeated Dodriel with ease and achieve an overwhelming victory at the Swordsmanship Tournament. The fame “Thousand Blade Academy” even invited him as a direct student!?