มาโอ ซาดาโอะและเหล่าทูตของเขาต้องแชร์ห้องเช่าเล็กๆ กัน ขณะที่อาชิยะปรี๊ดแตกเพราะความฟุ่มเฟือยของอุรุชิฮาระ มาโอก็เจออะไรบางอย่างใต้กล่องรองเท้า

อลัส รามุสปฏิบัติต่อมาโอและเอมิเหมือนเป็นพ่อแม่ของเธอเอง และถึงแม้จะยังมีเรื่องที่มาโอไม่รู้เกี่ยวกับเธออีกมาก เขาก็ตัดสินใจรับเธอมาดูแล

มาโอ, เอมิ และอลัส รามุสไปเที่ยวสวนสนุก ระหว่างชมการแสดง อลัส รามุสก็เกิดป่วยขึ้นมาและมีสัญลักษณ์รูปพระจันทร์เสี้ยวปรากฏขึ้นบนหน้าผาก

มาโอและเพื่อนๆ คาดเดาว่าอลัส รามุสอาจจะเป็นร่างมนุษย์ของเยซอด เซฟิร่าลำดับที่เก้าจากต้นเซฟิรอธ ต้นไม้แห่งชีวิตที่คอยเกื้อหนุนโลกนั่นเอง

อลัส รามุสรวมร่างเข้ากับดาบของเอมิหลังจากการต่อสู้ ขณะเดียวกัน ร้านแม็กโรนัลด์ที่มาโอทำงานอยู่ก็ดันมาปิดปรับปรุงจนถึงกลางเดือนสิงหาคม

With Ohguro's new and improved look, business is booming! In fact, there are more customers than Maou and his team can handle alone. And at night, there are ominous shadows in the fog...

Emi, Maou, and the gang learn the source of the recent demon invasion, as well as some surprising facts about Choshi City and their boss.

Maou, Ashiya, and Urushihara get a farming job on Chiho's recommendation. Emi seems to have some feelings about it.

Maou thirsts for a TV, Emi learns some shocking news, and Urushihara schools us all on how to be proper NEETs.

Buying the Devil's TV is more exciting than anyone expected. Unrelatedly, Maou is wiser about human relationships than anyone expected.

The whole gang prepares for their showdown with Raguel. But the fight has a lot of unexpected twists and turns, thanks to meddling from more than one immortal.

The Sasazuka MgRonald's remodeling is complete. New toilets! Better coffee machines! Maou and Ashiya's worries would be over, if it weren't for the girls' suspicious new habit.

The battle with Gabriel and Raguel is over, but the transition back into daily life isn't all smooth sailing.

Maou has been thinking about dreams ever since his conversation with Kisaki, and he knows exactly what to do next. Of course, whether he can get the necessary parties' buy-in on his dream is another matter...

Alas Ramus deserves a safe and comfy place to sleep! Emi and Maou go on a futon-shopping quest while Ashiya and Urushihara try to figure out what's going on with Suzuno.

Emi takes a trip to Ente Isla. Those left behind in Japan spend a lot of time arguing about whether or not they're worried.

Urushihara and Suzuno rush to Chiho's aid, but Maou lags behind thanks to his lack of magic and his confusing new acquaintances. Meanwhile, Ashiya has the toughest job of all: explaining all this to Rika.

Who's holding Emi hostage? Why are so many humans, demons, and angels after Ashiya? Maou needs to find out all this and more, but first he needs a new source of power to defeat the invading army with.

Emi is freshly struck by all the differences between Ente Isla and Japan. Then Alas Ramus reveals more about herself, causing Emi to reevaluate several things. Meanwhile, Maou is just trying to coexist with Acieth Alla without losing his mind.

Maou and Suzuno make their way through Ente Isla's forests. Emi and Ashiya each learn what they've been brought to Efzahan for.

Are we about to finally learn the landlady's secret?! Also, Ashiya takes control of the Malebranche while Maou struggles with his magic and Emi struggles with the stress of her position.

Suzuno and Albert's plan hits a snag, but Emi and Ashiya's plans are going oddly well. The big questions of the day are: Can Maou merge with Acieth again? And does he have enough gas left in Powered Dullahan III?

At last, all the players are in place for the final battle in Efzahan. What happens next?