The paperback, spanning 224 pages, is an official product licensed by Bushiroad and published by Tokyo-based Kadokawa Shoten. It follows Sendou Aichi as he meets a new character, Hamane Hiro (浜音ヒロ). Hiro is a lonely boy and a newcomer to
Vanguard, who Sendou reaches out to.
The novel is currently available for preorder on Amazon Japan for 777 yen, roughly equivalent to $10, and it is currently eligible for free shipping.