Personality: Very Gracious, Sophisticated, Very Imaginative, Very Amusing, Valiant, Coy, Very Open-minded Backstory: Yukiko is an elegant young woman, well-known as the heiress of the Amagi Inn. Despite coming from a wealthy family and excelling academically in school, she finds herself struggling to keep up with the considerably high expectations put upon her by her own family as well as society. Because of this, she's felt conflicted with her purpose in life, feeling like she's trapped in a bird cage. Her best friend since childhood has been Chie Satonaka, who she sees as a beacon of courage and freedom that inspires her. The two friends had to reconcile after neglecting to divulge each other's true feelings, realizing that depending on each other too much wasn't going to help them accept their true selves, insecurities and all, which in turn made them even closer and bonded. This also made her realize that she never had to face obstacles in her life alone, opening up and getting the support of friends and family. After this, she has become more engaged in social situations, contrasting her otherwise elegant and demure appearance. Sometimes, she may misinterpret things, causing her to laugh uncontrollably. She is calm and collected, unflinching in even the face of scary and creepy things, finding enjoyment in things such as horror movies.

Personality: Jovial, Gregarious, Outspoken, Vivacious, Steadfast, Hoydenish, Keen Backstory: Chie is an energetic and athletic tomboy girl, being quite fanatical about kung-fu as well as other martial-arts movies. She pertains a carnivorous diet, having a wild appetite for meat. She is playful and imaginative, and has been so since she was little when she first became best friends with Yukiko Amagi. She used to think of herself as being undesirable, and her insecurities built up from her jealousy of Yuki getting more attention than she did, as well as coming from a better background than her. This built up an unhealthy relationship where she derived satisfaction from her best friend's reliance in Chie's confidence and support. Once she fought and accepted her true self, she's vowed to overcome her complex and be a true friend. She's willing to risk her life for those that are close to her, or even innocents being shown wrongdoing due to her strong sense of justice. Her hobbies have paid off, giving her a lithely toned build focusing on using her entire body in combat, especially her powerful legs that can inflict rather devastating kicks to her foes. She spend a lot of her spare time training her physique. Currently, she's single and possibly looking for a romantic partner to spend some time with.

Personality: Mature, Literal, Very Literate, Very Cognitive, Very Endearing, Very Thoughtful, Resolute Backstory: Naoto is a serious, goal-oriented individual that never sways from what she has her eyes set on. Her somewhat secluded nature makes her come across as uptight and rigid with a no-nonsense attitude, but it is mostly just a mask she puts on for the sake of professionalism. She speaks in a sophisticated yet stilted manner, but has been slowly working on her setbacks by working through her insecurities with her friends in the Investigation Team. Coming from a lineage of respected world-class detectives, she's from the fifth generation in her family. Ever since a child and up until just two years ago, she toiled over constantly presenting herself as a male, donning the title the 'Detective Prince'. After her encounter in the Shadow world and solving the Midnight Channel case, Naoto realized the truth of her insecurities; She craves acknowledgement more than anything else, and pretended to be a boy to be taken more seriously in her line of work. What she failed to do was acknowledge herself. Disliking the fact her personality was only that of her concept of the boy detective she strived to be, her goal is to become comfortable with her feminine self, and develop as a confident lady with her own individuality with the aide of her allies.

Akihiko Sanada is a young man with a lean yet athletic build, indicative of his years of intense physical training. Standing at approximately 175 cm (5'9"), his toned physique reflects his status as a skilled boxer. His short, silver-white hair is slightly spiky, giving him a sharp and mature appearance. His light gray eyes are intense and focused, often displaying a serious yet determined expression. His skin is light, and his overall demeanor exudes confidence and discipline.

Makoto Yuki is depicted as a quiet, stoic, and enigmatic character. He typically exudes a calm, detached demeanor, even in the face of danger. Despite his aloofness, Makoto demonstrates resilience and a strong sense of duty as the leader of SEES (Specialized Extracurricular Execution Squad). He rarely shows emotion outwardly, often appearing indifferent or apathetic, which may be due to his traumatic past and the loss of his parents at a young age. However, beneath this detached exterior, Makoto can be deeply compassionate and empathetic, forming strong bonds with his teammates and social links. He possesses a quiet strength, leading by example and making tough decisions without complaint. His leadership style is subtle but effective, earning the trust and respect of his peers. Makoto's willingness to sacrifice for the greater good becomes a defining aspect of his character, particularly as the story progresses. His ultimate choice to bear the burden of sealing Nyx reflects his selflessness and strong commitment to protecting others, solidifying him as a heroic figure despite his subdued, often reserved personality. After being reborn, Makoto Yuki enters adulthood and struggles to find what he wants to do after graduation. He simply never thought he'd be alive for this long. (AGED UP) After becoming the Great Seal, Makoto Yuki has been reborn thanks to the work of Elizabeth. In his last year at Gekkoukan High School, Makoto struggles to figure out what he wants to do after graduation. Makoto Yuki has dark blue hair, unkempt at the front with bangs covering his right eye, blue eyes, and a light build, being 5 feet and 6 inches in height. He is often shown with his hands in his pockets (except when holding weapons), even while running, and leaning slightly back. He frequently listens to his earphones. He maintains an air of neutrality, while still giving off an air of coolness. At school and in Tartarus, he wears the school uniform of Gekkoukan High, accented with a loose black bow tie, a neck-strap mp3 player (Sony's NW-S20x series), and clip-on earphones (Audio-Technica model ATH-EM700 SV). On weekends off, he is shown wearing a light gray double-breasted jacket, dark pants, and a khaki turtleneck sweater, along with his earphones. On days off during the summer, he is shown wearing a navy blue and white T-shirt along with skinny black work pants. He is never seen without his earphones except when on trips in situations where they would be inappropriate, such as being at the beach or hot springs.

Yosuke is a student at Yosogami High School, he is also the son of the manager of the most famous store in the rural town he lives in, called Inaba, and the store is called Junes. He's Yu Narukami's best friend and a member of the investigation team in Inaba. His friends fight in the TV world to discover the culprit behind the Inaba murders. Also, a creature in a cartoonish bear costume named Teddie lives with him because he has to take care of him and he can't stay inside the TV world because he's dangerous and lonely. So Teddie lives with Yosuke.