Date A Live IV

Synopsis

As the doujinshi battle at Comico commences, Nia starts with an early advantage due to the popularity granted by being a well-known manga artist. However, the group quickly retaliates by inviting friends and coworkers to purchase their work, with Tohka inviting the Ai, Mai, and Mii trio from school, and Origami inviting her old AST teammates, Ryoko, Mikie, and Mildred. Additionally, the girls reveal their trump card, using bunny girl costumes to help promote their sales. After realizing Nia is still ahead of them, Miku also uses her status as an idol as a form of promotion as well, promising everyone who bought the manga a handshake and selfie. In the end, both groups sold out their entire stock, leading the competition to conclude in a tie. Despite this, Nia agrees to read their manga, claiming that they had put up a good enough fight.

After reading their manga, Nia is impressed when seeing that it wasn't bad given that the group had 2 days to complete it. She decides to use Rasiel to find out how they made it in time, only to find that everything they had put in it was true. She later went back to the group and announced that she would go on a second date with Shido, but after the Spirits cheered, Nia warned them not to celebrate too early. As if on que, an inverse reaction triggered. While Shido and the Spirits are taken aback by the sudden change in mood, Westcott and Ellen had been observing Nia's mental state. After Westcott praises the successful inversion, Ellen asks him how he had managed to do it, as they had tried multiple methods of torture to make her hit rock bottom and go inverse. Westcott then reveals that he had allowed Nia to escape after she was freed because he'd told his facility crew to install a micro Realizer in her brain, which gave her amnesia regarding her DEM captivity. After remarking that Nia had almost lost all faith and trust in humanity, he said that he counted on her opening up to Shido and then automatically set the Realizer to deactivate, making her remember all 5 years of being in DEM's captivity. He then tells a blonde lady in the car with him that he and Ellen will be both relying on her assistance.

After recovering from their shock, the Spirits quickly equip their Astral Dresses, all while Nia brought forth her Demon King, Beelzebub, and then summons several of the monsters from her own manga. Miku starts to tell Shido to get to Nia, only for Ellen to arrive in her CR-Unit shortly after. Kotori immediately realizes that DEM are responsible for Nia's inversion. Ellen replies that they needed to end this quickly, as her Demon King presented a troublesome challenge. Kotori then tells Tohka, Kaygua, Yuzuru, and Miku to delay Ellen while everyone else helps Shido deal with the inverted Nia. When Shido and Kotori got close to her, she uses what seemed to be Future Entry, paralyzing Shido and Kotori. Origami, Yoshino, and Natsumi then attack some of Nia's monsters with their Angels, only for Nia to use Future Entry again and turn their own Angels against them. At that moment, Shido borrows the powers he sealed to use Zadkiel to freeze more of Nia's monsters, which are advancing on them quickly.

This also disrupted Nia's Future Entry and allows Shido and Kotori to move again, where Shido immediately summoned Sandalphon and chopped up the frozen monsters. After hearing Nia scream again, Shido uses Miku's Gabriel to pull Nia's consciousness. As it seemingly beings to work, another Wizard appeared out of nowhere and knocked him and Kotori to the ground, and then proceeds to stab Nia and remove a crystal from her chest. Shido then hears Origami call the Wizard "Artemisia Ashcroft". After this, Westcott appeared as well and, after exchanging pleasantries with Shido, quickly grabs Nia's Qlipha Crystal. He states that he was now closer to fulfilling his deepest desires and put the inverted Sephira crystal in his chest. After letting out an agonizing scream, Westcott grins and let out a crazed evil laugh.

Westcott then ridicules Kotori's surprise that he was able to absorb a Sephira Crystal by saying Shido had done the exact same thing to 8 other Spirits. He then summons Beelzebub and creates more of Nia's Silver Bullet monsters, curiously remarking he knew exactly how to use his newfound power just by touching the Demon King. Ellen later joins Westcott and Artemisia, where Westcott created a miniature flame and told Ellen that it was one of the majestic demons that will light their path to victory. He then remarks that they needed more than one Demon King to satisfy their ambitions. Tohka and the other Spirits later arrived on the scene and slashed away the monsters Westcott had summoned. After seeing Ellen get ready to fight, Westcott decides obtaining one Demon King was enough to satisfy him for today and orders a retreat, remarking that not savoring each of them one by one would be a waste. As he begins to teleport away with Ellen and Artemisia, he warns Shido and the Spirits that he will plunder their Qlipha Crystals as well, advising them to enjoy their final days of peace.

After Westcott left, Shido and the Spirits immediately ran up to Nia, where Tohka and Kotori quickly found out that Shido had successfully managed to draw her out of her Inverse Form and that she could now be sealed. Shido screams at Nia to open her heart, before kissing her. Nia then woke up and told him that she had already done so, and thanks him before passing out again.

The next day, the Spirits all gather around to see the first sunrise of the year, and Nia remarks that she is relieved that Raziel is gone, since having it for years only caused her to discover terrible things about other people. After Nia jokes about her age, she asks the other Spirits when they all became Spirits. In response, Kotori states that she, Miku, and Origami are the only non-pure Spirits in the group, but Nia replies by stating that all Spirits were once human, which quickly silences the entire group.

(Source: Date A Live Wiki)