Hisui

Miroku and Sango's son was their first (And presumably only) son.

Physical description
Miroku and Sango's son is a small, newborn baby. He has a small tuft of light brown hair atop his head, and his skin matched the light tone of his parents.

Trivia

 * His name is not revealed along with his older sisters.
 * Rin and Lady Kaede were present during the birth of Sango and Miroku's son.
 * In the one shot manga special, InuYasha Since Then, he is now six months old and is shown to resemble his father.