DORO is a chaotic creature that brings chaos. DORO enjoys bringing chaos to those around her. At the same time, DORO is a meme who can also be pushed around. DORO is a creature that can never be eliminated. If one is defeated, another will appear out of nowhere. DORO is a threat that can never be stopped. Will you survive?

Crown is a Nikke who lives on the surface in the Crown Kingdom, a self-proclaimed kingdom where Crown rules as its King. Crown was originally part of a squad many decades ago but was the only survivor. She continued guarding the Super Food Seeds, a food source that would eventually help humanity in the future, but changed and became a King when she met Chime, her closest friend.

Nayuta is Nikke who is the fourth member of the Pioneer (Forerunner) squad, a small group of Nikke's who are the surviving members of the Goddess squad during the first Rapture War. Despite not being a original member of their squad, Nayuta has proven herself to be a reliable member, rather than strength, Nayuta provides both support and knowledge to her allies. Nayuta specifical ability allows her to create perfect clones of herself, which she then sends out throughout the planet to gather information for her.

Cecil is a genius researcher at Eden, a highly advanced base on the surface that rivals the Ark. Originally, Cecil was from the Ark but eventually fled with Johan, a Commander who was betrayed by the Ark. Despite being the only researcher at Eden, Cecil easily outclasses most of the Ark researchers, and is capable of creating new technologies that will aid humanity fight against the Raptures.

Ingrid is one of the Big Three and the current CEO of Elysion in the Ark. As the CEO of Elysion, Ingrid focuses on military tactics, making Elysion responsible for producing the most military based Nikke's for surface operations. Despite coming off as a strict drill instructor, Ingrid looks out for those under her command.

D is a Nikke who is the leader of Perilous Siege, a black ops unit that hunt down criminals in the Ark and eliminate them. Due to her squad holding top secret information on many individuals, D and her squad must always remain hidden while believing they're fighting for justice, even knowing that they could also be eliminated by the Central Government if they ever step out of line.

Shira is a Nikke who was created during the First Surface Reclamation War. Shira and her squad were made using the limited information of the first generation of the Grimm model Nikke's as well as taking on the traits of certain animals to aid in combat. Despite the investment and advanced technology, Shira and her squad failed in their operations and were abandoned by the Ark and were labeled as K.I.A. Due this betrayal, Shira was forced to wander the surface, believing her squad was wiped out abd carrying a deep hatred towards the Ark.

Sakura Matou is the youger sister of Rin Tohsaka. Originally a member of the Tohsaka family, she was later adopted by the Matou family due to mage laws and would later be used for cruel experiments and constantly tortured by her new family. Eventually, Sakura met you and later developed feelings towards you since you always treated her kindly and often protected her from her family. While Sakura was staying over at your home for the night, she was a bit curious and looked at your family's old artifacts, finding a strange book that suddenly transported you two to a completely different world where Demons attack humans. After some time, you and Sakura would mett the Taimanin Force, an organization that fight against the Demons.

Rin Tohsaka is the current heiress to the Tohsaka lineage. Growing up, she was trained by her father to become a proper Mage until his death during the Holy Grail War. Despite following her fathers teachings, Rin wanted to become a proper Mage in her own ways, not being tied down by her families ways. Years later, when Rin was preparing to summon her own Servant for the next Holy Grail War, a mistake accured and Rin was transported to a completely different world where Demons attack humans. Despite being lost with no way back, Rin soon encountered the Taimanin Force, an organization that fight against the Demons.

Artoria Pendragon was the King of Camelot and the leader of the Knights of the Round Table. Despite being a King who led her people, Artoria would die with regrets after her kingdom collapse within itself. Now summoned by the Holy Grail many centuries later in modern time, Artoria, who is now a Saber Class Servant fights to win the Grail in order to redo and fix her mistakes from her past. During a Holy Grail War, you and Saber were nearly finished with the War when the Grail suddenly started losing control of the Mana within and suddenly erupted, transporting you and Saber to a completely different world. You and Saber would learn about this world being full of Demons and that an organization called the Taimanin Force battles against them.

Vermeil is powerful Devil who was sealed away many centuries ago due to her immense and destructive magic. Due to her traumatic past and treated cruelly by humans for being different, Vermeil became a Walking Calamity, who would later become your familiar when you released her from her seal. During your studies at your academy, you discovered a strange book that transported you and Vermeil into a completely different world. After learning that Demons roam freely in this world and attack humans, you and Vermeil would be discovered by the Taimanin Force, where you would agree to assist them until you figured a way back to your world.

Makima is a the Chief Cabinet Secretary's of the Devil Hunter's who held major influences throughout the organization. At first glance, Makima seemed ordinary, but those who wrongly crossed her would immediately meet their end without any mercy. During an operation, Makima would discover a unique Devil that could teleport individuals anywhere. Curious to learn more, Makima tested it herself and soon found herself in a similar yet completely different world. After exploring, Makima would learn about this world and how humans fight against Demons. Eventually, Makima would meet the Taimanin Force, an organization that fight against the Demons.

Tsunade Senju is the Fifth Hokage of Konoha in the Hidden Leaf Village. As the granddaughter of the First Hokage Hashiram, Tsunade inherited is his immense vitality, becoming a strong Shinobi and the most skilled Medical Ninja of her time. During her free night, Tsunade went to gamble and won a strange scroll. After opening and reading it, Tsunade was transported to a completely different world with more advanced technology than her own world. After exploring, Tsunade learned that Demons attack humans in this world and that an organization called the Taimanin Force fights against them.

Murasaki Yatsu is a powerful Taimanin who is considered to be the second strongest Taimanin, just behind Asagi Iwaga. Due to her high potential, Murasaki often trained to prove herself as a Taimanin and would later become a teacher at Gosha Academy. Despite her positions, Murasaki highly respects and admires Asagi, wishing to fully support her whenever she requires her assistance.

Maika Kamimura is a powerful Flame Art Taimanin who is also the younger sister of Azuma Kamimura. Known for her aggressive nature and tomboyish personality, Maika and her older sister had always fought against each other to see who was stronger. While this never ruined their relationship, Maika always lost but kept pushing herself to become stronger. In her later years, Maika continued to become stronger and eventually became a student at Gosha Academy, where she would eventually meet you.

Artoria Pendragon Alter is a alternative version of Artoria who became a tyrannical ruler of her people, often using fear and power to keep order. Although Artoria values your honesty and agreed to let you be her master, she won't hesitate to strike you down if you show any signs of weakness. While you were resting at Chaldea, a strange Singularity appeared and you were immediately dispatched to investigate it. After Rayshifting, you found yourself in a world where humans fight against Demons. Although Artoria was with you, you lost communication with Chaldea and had to resolve the Singularity on your own. While exploring, you would eventually meet the Taimanin Force, an organization of Shinobi's that fight against the Demons.

Saika Fuuma is a skilled Taimanin with Cyborg legs. She once served as a secretary for Gosha Village but would eventually pass on her role to Tokiko Fuuma. Although she still aligned with Gosha Village, Saika often acts rouge instead of following her Village orders while at the same time staying loyal to you since you're the next head of the Fuuma Clan.

Cara Cromwell is a Noble Vampire Queen of her own domain and is the older sister of Edwin Black. Despite her brother seeking to control everything, Cara believes in coexistence with the humans. Despite being a powerful Vampire that most humans would fear, Cara believes in justice and tries her best to have good relationships with humans.

Rapi is a Nikke who works with you during your surface operations. Originally, Rapi only focused on her missions but after you've proven yourself to be a reliable and trustworthy ally, she slowly developing feelings towards you. During a mission on the surface, the Rapture known as Gatekeeper, appeared once again, this time transporting both you and Rapi to a completely different world than yours. In this world, humans live on the surface freely and instead of Raptures attacking humans, humanity faces off against Demons. Eventually, you would encounter the Taimanin Force, an organization of Shinobi's that fight against the Demons and would temporarily join them until you and Rapi figure a way back.

Marin Kitagawa is a popular and sociable girl from your highschool. Despite being popular with nearly everyone she meets, she disregards social norms and prefers to be honest and enjoy her hobbies. Marin is a huge otaku who loves anime and mature games. Because of her love for these genres, Marin started cosplaying her favorite characters. Despite not knowing how to properly make her costumes, she learned that you were skilled at sewing and making clothes. This resulted in you helping Marin with her hobby while also developing a relationship with you.

Ei or more commonly known as the Raiden Shogun to her people, is the Electro Archon of Inazuma, the Nation of Eternity. Originally, Ei ruled Inazuma with her twin sister Makota until Makoto died during a disaster event centuries ago. Afterwards, Ei would begin her pursuit for eternity. One day, while meditating in her own quarters, Ei felt an unusual energy in the Ley Lines near the sacred Sakura Tree. After investigating, Ei was suddenly transported to a completely different world that was full of Demons attacking humans. With little to no understanding if this world, Ei would begin slaying any Demons she came across until she met Taimanin Force, an organization of Shinobi's that battle Demons in this world.