The Serenade has a pink, roughly triangular headstock with two small, semi-circular notches taken out of its base. Its neck is pink with indigo, concave edges. The body of the sitar has an arrowhead shape. The center of the body is pink with a large, indigo “X” in its center, and the edges of the body are also indigo. Its three white strings are anchored to the body by a small, lavender, heart-shaped piece. If viewed upside-down, the Serenade bears an uncanny resemblance to the Heartless emblem.
Musically, a serenade is a musical composition or performance in someone's honor.
Serenade's ground combo starts with Demyx performing a 360° spinning diagonal slash with the tip of the sitar, followed by the same attack, but in the opposite direction. The combo ends with another 360° spinning attack, after which, Demyx strums the sitar, emitting a yellow shockwave which damages any enemies around him.
The aerial combo consists of four quick blasts of yellow shockwaves in an outward direction, followed by a blast of three yellow shockwaves forwards.