Kamen Rider Gaim Gaiden: Kamen Rider Baron (仮面ライダー鎧武 (ガイム) 外伝: 仮面ライダーバロン Kamen Raidā Gaimu Gaiden: Kamen Raidā Baron) is the spin-off featurette focusing on the character of Kaito Kumon (Kamen Rider Baron), released alongside Zangetsu as part of the first double set of Kamen Rider Gaim Gaiden, a series of V-Cinema (direct-to-video) releases that each serve as a spin-off of a from Kamen Rider Gaim, featuring unseen stories which took place during the show.