Originally a story posted on message board 2Ch, Touno Mamare's macroeconomic fantasy Maoyuu Maou Yuusha (Demon Queen and Hero) aka MAOYU found a publishing deal and inspired five manga adaptations before becoming this season's anime that reunites Spice and Wolf director, writer and principal cast. See how all these versions visually compare in a new fan made chart.
Left to right:
Light novels printed by Enterbrain starting in 2010
Maoyuu: Maou Yuusha - "Be mine, Hero" "I refuse!" - illustrated by Akira Ishida. This version from Comic Ace was selected as the official adaptation of the series.
Maoyuu Maou Yuusha - Other side of the hill - illustrated by Hiro Touge. serialized in Champion Red
You Asami's adaptation - a shounen version running in Famitsu Comic Clear
Maoyuu 4-Koma: You're Horrible, Maou-sama! - illustrated by Muronchi Nanatsu - running in Magi-cu
Maoyuu Maou Yuusha Gaiden - Madoromi no Onna Mahou Tsukai - illustrated by Taiki Kawakami, running in Shounen Sirius
The anime - with character designs from Hiroaki Karasu and Masashi Kudo