After eating the Fruit of Evolution, the donkey Lulune evolves into a beautiful woman! Seiichi’s harem just keeps growing… but shortly after a brigade of female knights, the Valkyries, takes Seiichi into the royal castle. What awaits him there is the beautiful brigade captain, Louise. She suddenly challenges Seiichi to a duel, but how does he fare...?! And what is the sad past that Louise hides?
The Black Dragon God was the strongest 
member of the Demon Lord's army.
كان إله التنّين الأسود العضو
الأقوى في جيش ملك الشياطين
Der schwarze Drachengott war das
stärkste Mitglied der Dämonenarmee!
¡El Dios Dragón Negro era el más
poderoso del ejército demoníaco!
¡El Dios Dragón Negro era el más
poderoso del ejército demoníaco!
Il dio drago nero era il membro più forte
dell'esercito del Re demone.
O Deus Dragão Negro é considerado o membro
mais forte do exército do Lorde Demônio!
Божество Чёрный дракон — 
сильнейший из армии демонов!