Season 3

Yuri and Murata return to The Demon Kingdom. Günter is preparing for the Maou's 16th birthday where Yuri will determine his path as an adult, Wolfram is on his way back from the Bielefelt lands. It turns out that while Yuri was away, the Ten Noble Family had chosen a new Maoh, which turns out to be Wolfram!

Yuri goes through with the ceremony and soon finds himself in The Original King's temple where he has to make the final decision. He meets The Original King himself, who tells Yuri that he will eliminate anyone who dares oppose Yuri being king.

After Yuri's decision is final, Wolfram brakes off the engagement in order to avoid any conflict and returns to the Bielefelt lands. Yuri pursues him and they have a duel. Yuri then uses his powers to defend himself and Wolfram, and to prove he is worthy of being king.

When merchants come to The Demon Kingdom's capital to sell miniature bearbees, the whole town is turned upside down. Greta convinces Yuri and Wolfram to buy her one, but the merchants give her one piece of advice: never get her bearbee soaked in water. They soon discover why.

During one of his study sessions, Yuri receives an invitation to attend Lyla and king Antoine Jean Le Pierre's wedding. However, the king announces that the special sword of his country, the one needed for them to get married, had gone missing. Yuri promises to find the lost sword.

Murata, Jozak and Conrad travel to Big Shimaron to obtain something that Murata had left behind without Yuri's knowledge. Yuri and Wolfram find out and follow them in Celi's ship.

Yuri and Wolfram attends a banquet disguised as girls. It is there where Yuri meets Saralegi for the first time. Yuri was exposed while Wolfram escaped with Adalbert's help.

Murata, Jozak and Conrad infiltrate the castle and manage to find a box full of swords. When an intruder alarm is sounded, Murata discovers it was not them that had been found.

Lanzhil, in order to get rid of both Conrad and Yuri, orders Conrad to execute Yuri to prove his loyalty to Big Shimaron, knowing that he would not do it.

Yuri and co. visits the academy where Conrad trained to become a soldier.

It turns out that Anissina's brother has set her up with a suitor for her to marry.

Yuri, while visiting Caloria, was attacked by members of the White Crow but fortunately was saved by Al while Wolfram and Conrad were busy fighting.

While trying to obtain the swords, Yuri and co. were tricked and attacked by the White Crows.

Yuri, Conrad, Wolfram and Murata returns to Earth so that Yuri is able to take his final exam.

Greta's past is revealed.

An old invention that was created a long time ago is found.

Sara invites Yuri to Small Shimaron to make an alliance with The Great Demon Kingdom. They were attacked while having a discussion.

Yuri and Sara returns to the latter's castle where Yuri meets Sara's trusted subordinate, Gerard.

Sara is captured while Yuri manages to escape with the help of his subjects but Yuri is determined to go back and save Sara.

Big Shimaron has crossed over to Small Shimaron to capture Yuri.

It is revealed that Berias is the one who shot the arrow under the orders of Sara so that he can gain Yuri's trust.

After Yuri went to Small Cimaron, the heads of the ten noble families summons him to a meeting around the round table to know his motives. However, the meeting is shortened when Yuri decides to play a game of "Shinoued Away" with them.

Just as Yuri and Murata are about to head for The Great Demon Kingdom, Shori surprises them as he jumps in with them and ends up pulling them further away than they planned.

Shori chases the White Crows and manages to rescue El by using magic.

As Jeneus is about to escape with Shori through a ship, Yuri and co. arrives and attempts to stop him.

Murata informs everyone that his memories of his past life has been transferred to Jeneus and that Jeneus is just a copy of the real person from the past.

Alazon explains the history of Seisakoku to Shori while Yuri and co. takes refuge at a hideout prepared for them.

Shori follows Alazon and unleashes the power of the sword on Big Shimaron's army which had come to destroy the White Crows.

The Ten Nobles gathered together to have a meeting and questioned Yuri's motive to travel to Big Shimaron. They were suspicious of Shori and placed him under house arrest for associating with the enemy.

Big Shimaron is approaching faster than everybody thought and Waltorana's troops has been mobilized. When Yuri, Murata and Shori attempt to get to Lanzhil's ship, they overshoot and arrive on Sara's ship instead.

Murata and Shori stops Yuri by pushing him overboard, sending him back to Earth along with Shori while Murata is transported to The Original King's Temple. When Yuri awakens, he finds himself unable to return to the other world.

When Yuri comes back, he realizes that Conrad is still in Big Shimaron and Wolfram has gone to fetch him back.

Yuri sends a letter to Sara, informing him on the capture of Beria and inviting him to The Great Demon Kingdom to get him back.

Berias explains the past of Seisakoku to Sara.

Jeneus attacks The Great Demon Kingdom in order to see The Original King once again as his last wish. He sends monsters as decoys to The Great Demon Kingdom and travels over to The Original King's Temple.

Yuri invites Alazon to Covenant Castle as an honored guest. He agrees to help Alazon to the exasperation of his subjects.

Sara appears in an alleyway with the Holy Sword lying next to him. When he takes out the sword, it leaves a faint trail on the ground. Sara follows it and finds Jeneus.

The Original King decides to disappear along with Jeneus but Yuri intervenes. After Yuri had lectured The Original King, they had let down their guard and Jeneus stabs The Original King.

Everything has turned back to normal but anxiety hangs in the air as Yuri has not awaken. Sara appears, offering to help Yuri with the Holy Sword.