A banknote storing device (for example, a storing and feeding unit (20)), includes a plurality of banknote storing mechanism (24, 26) arranged inside a casing (20a) side by side along a depth direction of the casing (20a). When viewed in a predetermined direction that is a direction orthogonal to the depth direction of the casing (20a) and also orthogonal to an axis direction of rotating members (for example, drums (24a, 26a)), at least one of the rotating members is arranged at a position at which the rotating member does not overlap with any of winding member accommodating units (for example, reels (25a, 25b, 27a, 27b)).