Season 1

Sakurai Yuki was abandoned by his mother and left in an orphanage, where he spent his childhood alone. Now, as a high school student, Yuki has recently begun to have several mysterious dreams that leave him with a nosta…

Yuki meets a man who introduces himself as Takashiro Giou, who claims to be his older brother and asks him to come with him to Tokyo. Yuki is initially confused by the sudden revelation and as a result (of the female Yu…

Yuki is troubled after his meeting with Murasame Toko and Tsukumo and Giou Takashiro, head of a family with special powers known as the Giou Clan. Does Yuki belong with Takashiro or with the children of the orphanage? Z…

While searching for the missing orphans, Yuki receives a call from his classmate Uzuki and heads to school, where he finds someone unexpected. Worried for Yuki, Tsukumo uses his power to find him and heads to his rescue.

Having found his place among the Giou Clan, Yuki decides to travel to Tokyo with Luka and the Zweilt Guardians. On the way there, inexplicable feelings well up inside Yuki as Luka sleeps by his side. Meanwhile, the poli…

In Tokyo, Yuki and Luka wait for Takashiro as he makes a stop at a police station. A girl is attacked by a man whose identity is revealed to be nothing more than a golem, holding the girl hostage. The girl is then posse…

Yuki and the others finally make their arrival to the Twilight Mansion at dusk. Upon arrival they are greeted by Aya Kureha and Tachibana Giou, the steward and director of the mansion. Yuki is disturbed by the nostalgic…

After everyone had breakfast at the Twilight Mansion, Tachibana Giou leads Yuki along with the Zweilt Guardians to the Communal bath which happens to be occupied by Toko Murasame and Aya Kureha. Luka drives Yuki to scho…

Yuki notices a scar on Shusei’s chest and learns from Luka that some wounds—especially those inflicted by friends—cannot be healed. As Shusei’s condition worsens, the police inform Takashiro about eight missing high sch…

Takashiro orders the Zweilt not to look for Shusei as World's End is searching. Shusei wakes up in a strange place surrounded by the 8 missing high school boys. Ashley comes in and reveals herself to be behind the Sleep…

With Yuki's help, Tsukumo wakes up long enough to warn the others of Reiga. Yuki, Luka, and Hotsuma set off to find Ashley and Shusei while Takashiro handles things at the mansion before catching up. The three enter Ash…

Hotsuma fights Ashley, but can't keep up because of his injuries. Just as she's about to kill him, his shouts wake up Shusei who stabs Ashley. The two take her on with renewed strength from being back together. Just as …

Yuki is shocked to see his childhood friend Kanata revealed as Reiga. While he struggles to accept that Reiga wants to kill him, the others rush to protect him. Shusei and Hotsuma take on the Opast twins, who have heale…

After the end of the brief confrontation with Reiga, Yuki sleeps for two full days due to the shock he received at knowing that his childhood friend Kanata was in fact, Reiga. While the others worry about Yuki, he busie…

Yuki is set to leave for the Kamakura residence with only Luka and Tachibana. Though the others wish to join him, they eventually give in to Takashiro’s order that only Yuki should go to the Giou main house. Senshiro, a…

Takashiro invites Yuki to accompany him on a stroll through the gardens. Passing through a bamboo grove, Yuki feels a sense of nostalgia towards the place. When Takashiro winces in sudden pain, Yuki gets to know more ab…

Takashiro recounts the events that took place 1000 years ago, during the Heian period. The Giou clan was a well-known family who directly served the court and was led by 4 high-ranking personages: Ario, Takashiro, Reiga…

Yuki decides to visit Luka and is assigned Senshiro and Kuroto as his bodyguards by Takashiro. At Yuki's prompting, Kuroto reveals that he and Senshiro owe Luka a great debt. Meanwhile, Touko and Tsukumo secretly takes …

Kuroto asks Yuki to play shogi with him, where Kuroto shares his past of how Senshiro becomes his second partner. Hotsuma and Shusei are summoned to the Kamakura residence.

Deeply concerned for his master Takashiro, Fuyutoki feels frustration with his inability to do anything but simply wait. Inspired by his words, Yuki disobeys Takashiro's orders and leaves the mansion to search for Luka.…

Reiga orders Cadenza to withdraw, binding him with summoner’s chains that Kuroto warns will burn if he resists. Cadenza notes that Reiga’s power is weakened by controlling two General-Class Opasts and easily breaks free…

Reiga and Cadenza retreat to Infernus, granting everyone a temporary reprieve from battle. Having pushed the limits of his power, Yuki loses consciousness and collapses. Witnessing the damage Yuki suffered in battle, th…

Reiga kidnaps Yuki and uses him to lure Luka and the Zweilts into his territory. Takashiro discovers Reiga's whereabouts and sends Luka and the Zweilts to rescue him. Hyde is held back by Hotsuma and Shusei, Elegy is he…

Reiga orders Luze, Luka's younger twin brother, to destroy everything that stands in their way, so Luze challenges Luka. During the fight of Luze and Luka, Takashiro breaks through Reiga's barrier and takes on Reiga, us…