This character has a dao.

Dao is actually a generic word used to denote any member of a family of single-edged, broad-bladed cutting or slicing tools, but in common, everyday usage means knife.

Dao blades are moderately curved and single-edged, though often with few inches of the back edge sharpened as well; the moderate curve allows them to be reasonably effective in the thrust. Hilts are canted, curving in the opposite direction as the blade which improves handling in some forms of cuts and thrusts.