Halkara's knack for inadvertently causing trouble led her to knock out the Demon King Pecora, and now she's locked in a dungeon. As Halkara's execution draws nearer with each passing moment, Azusa rushes to make a potion with her family's help and, with Beelzebub's guidance, takes it to the first-aid room where Pecora is. After tricking the demons guarding the room, Azusa finally reaches Pecora, but then...
We Blue Dragons swore lifelong submission 
to a dragon knight who overpowered us.
أقسمنا نحن التّنانين الزّرقاء على الخضوع 
.مدى الحياة لفارس تنانين فاقنا قوّة
Wir blauen Drachen haben geschworen,
uns dem Ritter, der uns in unserer Stärke übertrifft,
En el pasado,
En el pasado,
Nous, les dragons bleus,
Noi Draghi Blu giuriamo eterna fedeltà a vita 
al cavaliere dei draghi che riesce a sconfiggerci.
Nós, Dragões Azuis, juramos submissão eterna
a um cavaleiro dragão que nos dominou.
Синие драконы поклялись всю жизнь служить
 рыцарю-дракону, что победил нас.