Fics like Prisoner Exchange Program

A new prisoner exchange program is being held across the Demon Realm. Two princesses are selected to swap places. No Demon army is ready for this. (Sleepy Princess in the Demon Castle x 'Tis Time For "Torture," Princess crossover)

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1. A Melody For a Lifetime by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
2. A Gentle Nudge by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
3. A Fragrance That Lingers by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
4. No Rest For The Princess by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
5. The Daily Life of a Househusband by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
6. Lively Duke’s Daughter in the Demon Castle by ThoughtSpinner (乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… - 山口悟 | My Next Life as a Villainess - Yamaguchi Satoru (Light Novels), 乙女ゲームの破滅フラグしかない悪役令嬢に転生してしまった… | My Next Life as a Villainess (Anime), more)
7. Forbidden Demon Love by jesse_fanficmama (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
8. Miss Kobayashi's Lovey-Dovey Dragon Family by Yuri_Heart (小林さんちのメイドラゴン | Kobayashi-san Chi no Maid Dragon | Miss Kobayashi's Dragon Maid, 侵略!イカ娘 | Shinryaku! Ika Musume | Squid Girl, more)
9. Surprise Kiss Attacks by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
10. Things You Hear Don't Match To Reality by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
11. I Swear You’re Giving Me a Heart Attack by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
12. 6 School Times by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
13. The Goat Who Longs for the Moon by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
14. Scarf by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
15. Musings Of A Grimoire by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
16. The Observation Log of a Guardian by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
17. A Demon Guide by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
18. Sweet Dreams My Princess by hellcatinnc (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
19. Spoken Second-handedly by Mellize (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))
20. And The Heroes Came, If Only They Hadn’t by DragonQueen21 (魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Manga), 魔王城でおやすみ | Maoujou de Oyasumi | Sleepy Princess in the Demon Castle (Anime))