Volume 1

Volume 1 is the first volume in Harem Royale - When The Game Ends -. It was released April 7th, 2017 in Japan and January 7th, 2019 in English.

Characters

 * Minamatai Asunaro
 * Saya Kurabu
 * Yumezuka Lil
 * Shinonome Yuzu
 * Oriwada Serika
 * Zepafur

Chapter 1
Minamatai Asunaro is a normal high school student and considers the girls in his imaginary harem.

On the way home he wonders who should be shared in his sharing an umbrella delusion and picks up a glass vial.

At home Zepafur is freed from the prison and in gratitude intends to help him fulfil his fantasies.

Chapter 2
Oriwada is the first girl chosen and experiences the nightmare realm of Zepafur if she does not take part in the game.