The Failed Swordsman Who Became the Strongest After Spamming the 100 Million Years Button (一億年ボタンを連打した俺は、気付いたら最強になっていた～落第剣士の学院無双～ Ichioku-nen Button o Renda shita Ore wa, Kizuitara Saikyou ni Natteita?), abbreviated as ichiokunen (一億年ボタン?), is a light novel series written by Shuuichi Tsukishima and illustrated by Mokyu.
The Series is licensed in North America by Yen Press.
"If you want to become strong, be ready. A story about breaking the 100 million years in a day is awaiting for you."