Tsubaki Tachibana

Tsubaki Tachibana, real name Lilith, is the main protagonist of the series. A half-breed of two different types of demons, Vampire and Succubus, she always felt out of place back at home. This lead to her to using her transformation magic to change into a younger version of herself in order to spend time in the human realm, which lead to her meeting Shiro.

Personality
Tsubaki first appeared as being extremely stoic and with an unmoved expression, but this stems from her shyness and anxiety. She does frequently smile, however, and is not an all out emotionless character. She does state, though, that she is used to people not knowing how she feels.

As a demon, Tsubaki becomes far more lively and energetic with a stronger will to never be used or abused again like a subservient slave. She also reacts better to being told that she may be right rather than she can't blame herself, implying that she prefers people to be honest rather than sympathetic. Her Confidence deals largely with Tsubaki's attempt to become a stronger person and come to terms with her guilt.

According to Soren, this was always the case but Tsubaki was much more quiet and shy in her childhood, only opening up slightly as she grew up. Even so, Tsubaki hopes to get better at empathizing with people such as her siblings and spend lots of time with them.

As of her demonic origins, she does show to have minor sadistic tendencies, and, when taken over by her own demonic prowess, her sadistic tendencies advanced to the point that she is considered a sadistic dominatrix. However, normally, these are minor and are not considered lethal.

Living her life as a lie, she's a skilled actress and has been able to manipulate people to get what she wants, as she's used to lying all of her life. Being half-blooded of two different demon subspecies, she feels that people behave wary of her due to her multiple origins. She considered herself a disgrace until Shiro snapped her out of it.

Years of isolation due to her looks has left her very withdrawn and with a belief she's lost her place in the world, but that doesn't stop her from opening up to the people close to her and making jokes. This is because she's learned not to care what other people think of her.

As she spent the majority of her time growing up within the walls of the Vampire Castle, Tsubaki is very curious about the outside world, and quite eager to come across new sights. Tsubaki is also shown to have a tendency to oversleep unintentionally.

Tsubaki's most notable quirk (noted by a number of characters in the series) is that she is quick to trust individuals, even when she is advised not to, likely due to her growing up having no experience of the outside world whatsoever, making her naive. Soren has stated that this has been her main trait since she was young, having an honest and kind mindset and, in his mind, makes her worthy of being a ruler.

Tsubaki has shown a wide variety of talents, she is a great piano player, while she also enjoys writing poetry and reading about philosophy. However, she has trouble with household basics as she was constantly pampered by her retainers, which caused her to lack the skills.

Because of her kindness, Tsubaki initially acts as the Demons sole "moral center," i.e. the only one to never lose sight of the bigger picture. Tsubaki acts as the common sense of the group, considering helping people to be the number one priority and often wondering whether what they're doing can actually be considered right. Despite this, Tsubaki can also be rather sarcastic when annoyed or upset.

Tsubaki's hobbies include drawing and playing video games, and she in particular considers the former to be "a great stress reliever." She also has a massive sweet tooth and love for food such as cake and has a weakness for crepe special menus like "extra extra cream." It gets to the point that she will sometimes eat nothing but dessert and neglect normal meals. However, she dislikes carbonated drinks and seems to prefer soy milk over cow milk.

In the beginning of the game, Tsubaki has a modelling side-job as a hobby, although she doesn't want to make a living out of it just yet, as she is unsure how serious she wants to take it. Despite this and being generally confident about her body and physical appearance, Tsubaki becomes flustered and embarrassed when she is forced into a situation that exposes her skin without her prior consent or desire. She has a tendency to mock or prank people who are ogling her. Tsubaki can't stand it when people superficially value her for her body and nothing else, as if she is a thin-shelled, hollow doll with nothing on the inside or no other redeeming qualities. She is also embarrassed by her Succubus outfit at first, believing the tail is the only fine part of it. In Mementos, she states that she likes using whips, and has gotten pretty good at handling one, before adding that she's not sure if that's something to be proud of.

Magic and Abilities
Take Over (接収テイクオーバー Teiku Ōbā): Like her elder siblings, Tsubaki uses 'Take Over Magic. Her transformation is based on transforming her body into animal and hybrid-animal forms which is called Animal Soul (アニマルソウル Animaru Sōru). She can use her Take Over transformations in a variety of ways, and was seen augmenting her physical capabilities and parameters during combat through their use. According to Soren, this is a high level Take Over technique. Transformation Magic (変身魔法 Henshin Mahō): Tsubaki is very skilled in the use of Transformation Magic, which is considered one of her specialties. She has been shown capable of transforming separate parts of her body instead of it all, and she is able to perform Basic, Intermediate, and Advanced Level transformations with ease. When taking on the appearance of animals, she retains some features of her human form, such as her womanly eyelashes. She also appears to be able to hold onto a transformation for years and years on end.
 * Animal Soul: Bird (鳥 Tori): Tsubaki resembles a bird with green and pinkish feathers.
 * Animal Soul: Wings: Tsubaki transforms only her arms into wings whilst retaining the rest of her human features. (Unnamed)
 * Animal Soul: Harpy: Tsubaki transforms only her arms and lower body into those of a bird and flies whilst retaining the rest of her human features. (Unnamed)
 * Animal Soul: Fish: Tsubaki takes on the form of a small fish that gives her the ability to swim and breathe underwater. (Unnamed)
 * Animal Soul: Cat (キャット Kyatto): Tsubaki partially takes on the form of a feline. In this state, she is mostly humanoid, with longer hair in the manga while in the anime her hair remains unaltered. Concentrated striped patterns appear around her forearms, as well as feline-like pads on the surface of her palms and sharp claws at her fingertips. She also sports feline ears, whiskers, a small feline nose, and a long tail, but otherwise retains her human-like features. In this state, her attire changes as well: Tsubaki appears to be garbed in a tiger-skin, 2-piece bikini. While in this form, she gains speed with which she uses for her fierce scratches from her claws to overwhelm meager opponents into submission. However, this form is useless against any brute strength type of opponents. Upon learning Take Over Animal Soul for the first time, this was the spell Tsubaki has used and the suit was slightly different, despite that she was young.
 * Animal Soul: Penguin: Tsubaki resembles a form of a giant penguin. Utilizing the momentum gained from her excessive weight, she can smash her opponents or attack them. (Unnamed)
 * Animal Soul: Mermaid: Tsubaki takes the form of a mermaid. She is mostly humanoid with a purple tail. This allows her to be able to breathe underwater. (Unnamed)
 * Animal Soul: Pig: Tsubaki transform into a small pig, with ears slightly longer and retaining only her hair. (Unnamed)
 * Animal Soul: Bunny: Tsubaki partially takes on the form of a bunny with slightly longer ears sticking up and white fur body and dark colored legs having only retaining her face, head and hair humanoid. This form enhances her kicks as she attacks her opponents. (Unnamed)

Charm (魅了チヤーム Chāmu): Vampires have the ability to charm others into lowering their guard to allow them the luxury of being able to suck blood.

Mind Control: This Black Magic allows Tsubaki to warp the minds of those who she induces with her Magic. When induced, the target's eyes become red and they become bloodthirsty, wanting to kill or destroy the user desires. (Unnamed)

Allure and Illusions: Being part succubus, Tsubaki possesses powers of Allure, which she can use to hypnotize males. This technique, however, only seems to last a few minutes. Tsubaki can also use Illusions, displaying the ability to affect an entire crowd of males with her Allure.

Blood Consumption: Because she is a vampire, Tsubaki is anemic and needs blood to function daily. She has always consumed tomato juice or blood packet transfusion to sustain herself. However, her liking for his blood has escalated from fondness into a dependence. If she goes too long without it (around 14 days at least), Tsubaki's strength sharply declines and suffers fainting spells. Regardless, she can still ingest other food and drinks, with tomato juice being the alternative to blood.

Immense Strength: As a vampire, Tsubaki is extremely strong. When Tsubaki kicks an enemy, they will be sent flying and gaining a huge injury and the place where the enemy flew and landed will also receive enormous damage. Tsubaki had enough strength to knock a giant Phoenix out cold with one kick however she did note that as a newborn Phoenix, its powers weren't developed at all.

Immense Speed: She is capable of running and accelerating to high speeds which a human and many other demons could never achieve.

Immense Stamina: Tsubaki's musculature produces considerably less fatigue toxins during physical activity than the musculature of an ordinary human. She can physically exert herself at peak capacity for hours before fatigue begins to impair her. Tsubaki is able to fight against powerful opponents in rapid succession.

Immense Durability: The tissues of her body are considerably harder and more resistant to physical injury than those of an ordinary human or demon. Tsubaki is capable of withstanding great impact forces, and falls from great heights, without sustaining any injury. Due to Tsubaki dodging attacks more often than enduring them like Shiro, she doesn't have as much endurance as her.

Enhanced Agility: Tsubaki's agility, balance, and bodily coordination are enhanced to levels that are beyond the natural physical limits of even the finest human athlete or any other kind of demon.

Enhanced Reflexes: Her reflexes are heightened in a similar manner and are superior to those of the finest human athlete or demon.

Blood Transfusion: One unique ability that Tsubaki can utilize is physically injecting her blood into another person through her fangs. Not only will the host regenerate any wound on his or her body, but may temporarily transform into a vampire gaining the increased strength and speed that comes with it. The downside to this is diminished strength upon successful transfer into the host's body, as Tsubaki needs to recuperate the lack of blood circulation in her system. However, this ability is extremely dangerous: repeated injections will slowly damage the host's body, perhaps killing the host. And even if the host does survive a blood transfer, there is a rare instance he or she may transform into a Ghoul, a mindless variant of a vampire with an uncontrollable desire to kill and a huge craving for blood and battle.

Quotes

 * "Mother always told me... When I grow up, I will meet my loved one. And then whatever happens, I can have a good ending with that one... Like mother and 'her lover'."

Trivia

 * Unlike regular Vampires, who are weak against water, Tsubaki does not inherit this weakness due to her also being part Succubus.