Hunter X Hunter, Volume 20, Paperback/Yoshihiro Togashi

Deep in the heart of the land of NGL (Neo-Green Life), Gon and Killua have one month to train if they hope to beat their powerful foe KnuckleThey use the entire time to increase their baseline stamina just to get to his level. Gon discovers that his windup leaves something to be desired--it sucks up all his energy until he passes outMeanwhile, Biscuit confronts Killua about a serious flaw in his fighting ability--one that could cost them everything