A drag mechanism is configured to brake rotation of a spool in a fishing-line releasing direction about a handle shaft. The drag mechanism includes a drag regulation member, a drag washer, a handle, a one-way clutch, and a cam. The drag regulation member is configured to regulate drag force, where the drag regulation member includes an operating part and a regulation nut. The regulation nut is axially movably and unitarily rotatably coupled to the operating part. The regulation nut is screwed onto an outer peripheral surface of a tip end of the handle shaft. The drag washer is disposed onto the handle shaft. The handle is disposed between the drag washer and the drag regulation member. The one-way clutch is configured to prevent rotation of the handle shaft in the fishing-line releasing direction. The cam mechanism is configured to increase the drag force.
