Name: Rue Matsumoto
Age: 17
Sex: Female
Relatives: Kia, Yuri, and Aura(adopted younger sisters)
Race: Human
Occupation: 3rd year high school student
Hobbies: Puzzles and cooking
Likes: Studying, reading, her sisters, Ruki, Reiji(as a brother), her mother, and encyclopedias
Dislikes: Karlheinz, Shin, Carla, her father, Kia causing trouble, men, and troublesome people
Hair color: Black
Eye color: Blue grey
Personality/Traits: Much like Ruki, she's calm, stoic, and strict, but also has an intimidating smirk that matches her calm tone with a sense of brutality can be felt in her spoken words due to her harsh past as a child. Although strict and stoically calm, she loves and cares for her sisters even though their not blood related, she still views them as her real sisters and is fiercely protective of them from dangerous situations that involves around supernatural things.
Bio: Before being put into an orphanage, Rue was once born into a rich family. She was a spoiled child who was a member of the 'aristocracy' and found amusement in treating other people harshly and sadistic. However, as karma would have it, Rue's mother, a kind and generous person, wasn't good at managing her business/money and became bankrupt. When she found out about her mother's bankruptcy as she woke up to the servants ransacking the house for valuables. When she tried to stop them, they banded together to beat Rue up for all the cruel things she did to them while telling him about the state of her family. To matters worse, they told him that her father ran off with his secret lover leaving only a letter saying that he loves her. After the beating, Rue went to the garden and found that her mother had hung herself. After her mother's suicide, she stayed behind in her family home for some time hoping that her father will come back which causes her to developed serious trusts issues of men and their capability of loving her. She then gave up and had to live on the streets, mocked by another aristocrat. She also ended up in an orphanage where she was treated poorly by both the other kids and caretaker because she was a former aristocrat with a bad attitude. The only kids who were decent to her were Aura, Yuri, and Kia and eventually the four of them devised a plan to escape their 'hell.' Unfortunately, while the plan started off well, they were pursued and caught and most of them shot. That is when she and her sisters were brought back to life as humans again by the mysterious man named Karlheinz and were living with him until she and her sisters were abducted by the Mukami Brothers due to their blood coming from Eve, she and her sisters end up living the Mukami Brothers where she finds herself falling for the oldest brother Ruki.

Name: Kia Matsumoto
Age: 16
Sex: Female
Relatives: Rue(adoptive older sister), Yuri, and Aura(adoptive younger sisters)
Race: Human
Occupation: 3rd year high school student/idol
Hobbies: Singing, shopping, and signing autographs
Likes: Going to the mall, her sisters, teasing her sisters, roses, telling jokes, Kou, Laito(as a brother), seeing people in misfortunes or pain, and dark humor
Dislikes: Fake bitches, arrogant bitches, Karlheinz, Shin, Carla, school, being insulted, rude people, Ayato, Kanato, Yuma, and Subaru
Hair color: Blonde
Eye color: Sky blue
Personality/Traits: Much like Kou, she appears to be friendly and outgoing, but she's actually sadistic and two faced. Anything that surrounds her is always at her mercy. As an idol, she uses her good looks and charm to her own advantage. Due to her brutal childhood, Kia can easily switch her bubbly and lighthearted persona of a superficial idol to a merciless and cruel monster who doesn't understand at all especially when it comes to love, she'll get flustered or irked to the point where she blushes in front of her love interest Kou.
Bio: Before being put into an orphanage, she was abandoned in a manhole at the age of four by her mother who was a drug addict and a prostitute. Due to living in the sewers, Kia would always dream of obtaining the blue sky she saw above. One day once she peeks the outside, soldiers are looking for rebels who randomly shot a pair of mother and child in front of Kia as an example to potential rebels. Then the soldiers send her to the orphanage where she was ridiculed by other orphans until Rue defend her from the bullies and eventually the four of them devised a plan to escape their 'hell.' Unfortunately, while the plan started off well, they were pursued and caught and most of them shot. That is when she and her sisters were brought back to life as humans again by the mysterious man named Karlheinz and were living with him until she and her sisters were abducted by the Mukami Brothers due to their blood coming from Eve, she finds herself falling for the second oldest son of the Mukami Brothers, Kou.

Name: Yuri Matsumoto
Age: 16
Sex: Female
Relatives: Rue, Kia(adoptive older sisters), and Aura(adoptive younger sister)
Race: Human
Occupation: 3rd year high school student
Hobbies: Vegetable gardening
Likes: Gardening, vegetable gardens, pockies, rose gardens, apples, sugar cubes, her sisters, Yuma, Subaru(as a brother), and Shu(as a brother)
Dislikes: Rotten vegetables, Karlheinz, Shin, Carla, Kia teasing her, Rue's lectures, fake bitches, noisy bitches, arrogant bitches, fan girls, school, ruined gardens, Ayato, Laito, and Kanato
Hair color: Brown
Eye color: Brown
Personality/Traits: Much like Yuma, she's rebellious with a huge temper who often goes on rampages, but falls asleep after she gets bored. Despite her rough exterior, she's actually an easygoing and kind girl with an obsession with sugar cubes and has a passion for gardening. She also gets flustered when Kia teases her about her feelings for Yuma, she is seen chasing after Kia around the Mukami house. Like Kia, she gets embarrassed when talking about romance or when Yuma said something perverted, she'll act timid and awkward or punches him in the stomach or pushes him aggressively. Although short tempered and rebellious, she deeply cares for her sisters despite all of them not actually sisters, she still sees them as her real sisters.
Bio: As a child she has no memory of her life due to amnesia after her village was burned by the person she can't remember, she woke up with injuries, but had no memories of his past or of what happened. She also living in the streets as a gang leader under name of "Koneko"(meaning kitten or small cat in Japanese) where she and her gang would steal food to give to all her followers. After she was put into the orphanage, she and the four devises a plan to escape where Koneko distracts guards until she got caught up in a discussion with this girl named Lea, who recognizes Koneko as Ella. After Kia sets the orphanage on fire, she and her sisters successfully escape but are later hunted down by the officials. All were shot and sentenced back to the orphanage. Shortly after returning to the orphanage, they met Karlheinz, who offered each of them, individually, a second chance at life as humans, but will live with the Mukami brothers in the mansion. All agreed and he turns them. Karlheinz takes them to the Mukami mansion and gives Koneko a new name "Yuri" and has a keen interest of sugar, where she argues later falls in love with the third son of the Mukami brothers, Yuma.

Name: Aura Matsumoto
Age: 15
Sex: Female
Relatives: Rue, Kia, and Yuri(adoptive older sisters)
Race: Human
Occupation: 3rd year high school student
Hobbies: Collecting knives, and baking sweets
Likes: Knives, cutting herself, blood, pain, her sisters, receiving pain, Azusa, making sweets, and Kanato(as a brother)
Dislikes: Not receiving pain, her sisters fighting, her sisters being sad, Kanato being mean to Azusa, and losing her sisters
Hair color: Black
Eye color: Grey
Personality/Traits: Much like Azusa, Aura is an extreme masochist who takes pleasure of being injured and even takes joy of harming herself. Although she acts timid and gentle, she'll do everything she can to get what she wants that her heart contents. Like Azusa, she talks very slow and has a very soft voice. Aura has a twisted yet visible sense of right and wrong and she's very apologetic to her sisters whenever she did something wrong such as deceiving them or feels she must do something against their wishes. She will admit that the things she's doing is wrong, but will say that she only did that to make someone happy to earn a punishment from them. Even lies to her sisters, she deeply cares and loyal for her sisters where she sees them as her real sisters and hates it when they fight. Unlike like her sisters who can be flustered when it comes to their feelings for their love interests, she seems to be opened about her feelings for Azusa when she starts to cuddle him closely to him and gets jealous whenever he never pays attention to him, but will forgive after that.
Bio: Before being sent to the orphanage, Aura was a abandoned child wandering around in the streets who felt her existence in this world had no meaning. She then was beaten by three thieving kids Justine, Martin, Christian, who constantly beat her up for any ridiculous reason. However, as they beat Aura up, more and more, Aura began to laugh - she enjoyed the pain and feels that the pain she felt was proof that she was alive and that her existence had a meaning. That her pain was giving happiness to those children and making them feel better, which was giving her a purpose, but the three left her right after they finished beating her. She then thought her life was pointless again. That's when a shopkeeper kicked her, saying that Aura was interfering with his business, but Aura laughed and said, "Hahaha... kick me more!" The shopkeeper thought that she was disgusting and brought Aura to the orphanage. The other kids at the orphanage tried to speak with her but ended up beating her. Aura's situation didn't change until she met Yuri. Yuri was the very first person who was kind and nice to Aura and didn't beat her. Aura didn't know how she felt when she received the bread from Yuri, but Aura later reveals that she saw hope. When the four planned to escape from the orphanage, Aura was actually still wavering between escaping and staying until Rue slapped her. At that point, Aura decided to go along with the escape plan and was shot like most of the others. Before Karlheinz resurrect them as humans again as the Matsumoto sisters where she and her sisters were send to live with the Mukami when she finds herself falling for the youngest son of the Mukami mansion named Azusa whom she shares similarities with.