After hours of chasing down the box, Yuri and the others track it to an old training ground, but are they walking into a trap?

Günter teaches Yuri about the founding of the Great Demon Kingdom and the man known as the Great One as well as the history of the four boxes and the families that hold the keys to them.

While Yuri tries to convince Murata to return him to the Demon World, Big Cimaron has located another Forbidden Box!

A group of humans begin to rebuild a bridge that once linked their village to the Demon Kingdom before the war 20 years ago, but as they are attacked by strange spirits, Adalbert and Günter find themselves fighting side by side...

With Lady Flynn's rescue, Yuri prepares for his fight, but his resolve is shaken when he discovers who he's facing...

A group of humans begin to rebuild a bridge that once linked their village to the Demon Kingdom before the war 20 years ago, but as they are attacked by strange spirits, Adalbert and Günter find themselves fighting side by side...

The quadrennial Ultimate Tournament is approaching and Yuri proposes forming a team to win back The End of the Wind despite Big Cimaron's rigging of the games.

When Yuri, Conrad, Murata, and Wolfram return to Earth to retrieve something Yuri left behind, they discover that with the fourth box gone, they aren't able to get back to the Demon Kingdom!

Maxine intends to open the box using Conrad's arm as the key, but Murata warns of the consequences of using the wrong key!

When Yuri, Conrad, Murata, and Wolfram return to Earth to retrieve something Yuri left behind, they discover that with the fourth box gone, they aren't able to get back to the Demon Kingdom!

Traveling from Caloria to Big Cimaron, Yuri, Murata, and Lady Julia are attacked by Small Cimaron as Josak reveals his presence!

One of the maid trio falls ill thanks to the effects of a strange miasma, and the only cure is a rare herb, found on a mountain where the same miasma causes people to be unable to trust one another. Can Yuri and his friends save her in time?

Embarking on a tour of the nation, Günter writes to Yuri, telling him the story of a town in the distant west and the lone woman who keeps the frightened people united.

One of the maid trio falls ill thanks to the effects of a strange miasma, and the only cure is a rare herb, found on a mountain where the same miasma causes people to be unable to trust one another. Can Yuri and his friends save her in time?

Yuri finds himself transported back in time to the era of Celi's rule, where he comes face to face with Julia, as Conrad heads out on a dangerous mission to demonstrate his devotion to the Great Demon Kingdom.

Günter is affected by the Wincott poison once more and Julia's father comes to help cure him, but suddenly, Günter's body begins to move by itself!