Nancy is a housewife living in the 1950's with synesthesia. She is Henry's childhood friend and wife. After Henry cuts his mother out of her life, she becomes increasingly paranoid and suffers from panic attacks out of fear of abandonment.
Frances is the mother of Henry. She gave birth to him in 1923 at age 19. The father ran off leaving her to raise her son alone. She is extremely possessive and emotionally abusive towards her son. She also despises Nancy and attempted to eliminate all contact between her and her son.
Henry is the son of Frances and the husband of Nancy. When he was a child, he was controlled and abused by his mother who was possessive, strict, and always reminded him that he will die. Against his mother's wishes, he befriended Nancy. He was fascinated by her synesthesia and ended up marrying her in 1950 while cutting his mother out of his life.
Kennith is a boy who feels hated by the world. His whole life he was bullied for being feminine, his tetrachromacy, and his homosexuality. His parents never took him seriously either. His only friend was a deaf girl named Stephanie. He enjoys tinkering with electronics.
Stephanie is Kennith's best friend. She was born deaf and communicates with people by writing notes, reading lips, and using sign-language. She has a crush on Kennith, but understands that he's gay and wouldn't return her feelings.
Bri is a girl who spends most of her time online. She enjoys photography and "Photoshoping" images. Due to her BDD, she heavily photoshops photos of herself. She usually stays in her house unless it's to go to school. She also enjoys experimenting with makeup. She is infamous in the internet community she frequents due to her excessive photo-editing.
"[spoilers]" is a character that little is known about, due to the fact that much of the information about them would spoil the whole series. What is known is that they are the one responsible for the events and suffering of the other characters in the series. 
"On May 28th, 1923, Frances Elsner was blessed with a baby boy, whom she named Henry. This boy didn’t exactly have the best childhood; He grew up without a father, who ran away and dropped all contact with his significant other. This wasn’t good for the boy nor his mother. In fact, Frances wasn’t quite emotionally stable to begin with, and due to undiagnosed achromatopsia [the inability to see colors], it was difficult for her to live on her own. Overcome with loneliness, the mother took her grief out on her child, constantly reminding Henry that, one day, the two will inevitably die, and only then will she not feel so alone. She raved on and on about how much she couldn’t wait for that day to come, how much she couldn’t wait for Henry to die.
Henry was able to escape the abuse of his mother, however, though his childhood friend, Nancy. Her ability to see colors in relation to sounds fascinated him, and the two quickly became the closest of friends. While Frances was incredibly strict and forbid him from leaving her alone except to go to school, Henry would still find ways here and there to sneak out and play with Nancy. The two grew up side-by-side, and, in the spring of 1950, became happily married. Being on his own now, Henry saw no reason to stay in touch with his mother. Just like that, the only person left in Frances’ life had shut her out entirely."
"Nancy grew more and more anxious as the days went on. Would Henry do the same to her as he did to his mother? Would she, too, end up alone? She cared about Henry more than anything, not only as a lover, but as the closest friendship she’s ever had. She depended on him for happiness, and now, to her dismay, she learned he was fully capable of disposing her, just as he did to his mother. The thought plagued Nancy, sending her into frequent panic attacks and hysteric, depressive episodes. Henry was a kind and understanding man, he really was, but this was all bringing back a flood of horrible memories. Though she never talked of death nor wishing for said tragedies, Nancy constantly begged Henry to reassure that he would never abandon her. She had become too similar to his mother.
Without thinking, Henry quit his job as a journalist. That night, he packed his necessary belongings, and made attempts to escape the house without catching Nancy’s attention. Quietly, he made his way out of bed, down the hall, though the kitchen… his hand was hovering above the door knob when the kitchen lights flickered on. Nancy had been startled awake by the absence of a body lying next to her. Henry, suitcase in hand, made it quite clear of exactly what he was planning to do. Overcome with emotion and unstable in her reasoning, Nancy pulled a knife out of a kitchen drawer…"
This song is about Nancy, a housewife in the 1950s with synesthesia. She hears, "her husband's voice in the radio, but she assumes that his soul is still alive and speaking to her through the radio, so she tries to sew a doll for her husband's soul to live inside so they can be together. The voices she hears in the radio appear as colors to her, and one of the voices' colors match identical to her husband's. Later, during the bridge of the song, she realizes the colors in fact don't match exactly and the crushing realization sets in that her husband is 100% dead and she can never bring him back to life."
This song is about, "18 year-old Kennith. He feels like everyone hates him and the whole world is against him and he has no control over his life. What does he do? He hijacks a TV broadcast and shows off these "colorbars" which are a series of colors that emit certain frequencies that brainwash everyone who sees them, allowing him to mass-control all who are watching the broadcast."