Gamaran (我間乱?, Romanized as GAMARAN in Japan) is a Japanese shōnen manga series written and illustrated by Nakamaru Yousuke. Gamaran chronicles the adventures of Kurogane Gama as he competes in the Grand Tournament of Unabara. Facing many opponents with powerful weapons and techniques, Gama must use all his skills in his quest to become the greatest swordsman in the land.