Sleepy Princess in the Demon Castle is a 4-book series with 4 released primary works first released in 2016 with contributions by Kagiji Kumanomata and 熊之股鍵次.
魔王城でおやすみ. Maō-jō de Oyasumi. Good Night in Demon Castle
#1 of 4 in Sleepy Princess in the Demon Castle
2016 • 13 Readers • 176 pages • 3.5
#2 of 4 in Sleepy Princess in the Demon Castle
2017 • 3 Readers • 168 pages • 4.5
#3 of 4 in Sleepy Princess in the Demon Castle
2017 • 2 Readers • 168 pages • 4.5
#4 of 4 in Sleepy Princess in the Demon Castle
2017 • 2 Readers • 176 pages • 4