"LOST" is an "alternate time story" that progresses at the same time as the current story of Duel Masters Win, and the Duel Masters LOST Tsuioku no Suishō manga depicts a never-before-seen world. It centers on 16-year-old Win Kirifuda — the protagonist of the Duel Masters Win anime — who has lost everything. He is then drawn into a battle to regain the world he once desired.