vy2
VY2 (codenamed "YUUMA") is a Japanese VOCALOID developed and distributed by the YAMAHA Corporation (Bplats, Inc.), and was released for the VOCALOID2 engine.
This VOCALOID is described as gender-less and has no official avatar- so instead there are fan interpretations. These fan designs are based on the software's boxart, a decorative sheathed katana.