Overlord Bonus Volume

The Vampire Princess of the Lost Country (亡国の吸血姫) is a bonus novel by Kugane Maruyama in the Overlord series. It was released on April 27, 2019. It details an expansion of an alternate story of Momonga's journey into the New World.

Main Summary
On that day, the online game that caused a huge boom. YGGDRASIL quietly end of service—————————it was supposed to———————However, the game does not log out after the end time. Somehow, a salaryman player has been blown away to another world.....

Keeno a lonely girl in a city where zombies crawl meets and travels with the strongest magician, confronting the Dragon King————Another legend that might have been Momonga.

Trivia

 * In order to acquire the bonus novel, it is necessary to buy all three Overlord III Blu-ray bundles. Contained in Box 1 and Box 2 are tickets showing proof of purchase and subsequent orders to buy the next Box. The last Box 3 contains an application to order the novel costing 1500 yen.
 * Originally the novel was supposed to be released in March 2019, however it was delayed a month later.