It’s been three years since Nishi High’s Hiromi Oka was taken under the wing of former tennis superstar and “demon” coach, Jin Munakata. Fresh off a national championship win, Hiromi has been selected to represent Japan in New York for an international tournament. Unfortunately, Munakata is suddenly hospitalized after his own demons finally catch up with him. Forced to continue on without him, Hiromi must find it in herself to keep playing in the face of new challengers and heartbreaking tragedy.