Tsubaki Kasugano

Tsubaki Kasugano (春日野 椿 Kasugano Tsubaki) is the 6th Diary holder in Future Diary.

Appearance
Tsubaki is a young, nearly blind Diary holder. Her long, dark blue hair flows loosely down her back, and a bright red ribbon is tied at the top of her hair in a large bow. S he has bangs covering her right eye, while a white hair clip holds the hair on the left side of her face. Tsubaki dons an orange kimono with orange trousers underneath.

Personality
Tsubaki is the figurehead of the Omekata religion, but is seemingly paranoid and won't trust the people who serve her, due to her horrible past of abuse. Otherwise, Tsubaki is a very calm girl but can become very irritable at times.

But Tsubaki is revealed to be in fact a cruel, ruthless, sly young girl that leads other diary holders to her in order to kill them and gain the title of "God".

History
When her parents were killed, Tsubaki fell into the hands of the Omekata at a very young age and was locked up in a cell so that she would not escape. All Tsubaki had was a handball, which she often found comfort in and would often play with it. But one day the ball dissapeared and Tsubaki fell into a panic over her precious item. She then deducts that the ball had dissapeared from her "invisible" world and would later come to resent it, hoping for the world to simply "disappear". Tsubaki was also raped many times by the men of the Omekata, deepening her twisted view on life.

Diary
Tsubaki's diary is the [Clairvoyant Diary] also known as "The Thousand League Eyes" and unlike most other characters' diaries, Tsubaki's diary comes in the shape of a long scroll. Tsubaki's diary allows her to see distant events in the perspective, or "eyes", of her followers. Although the [Clairvoyant Diary] is very powerful, it is easily prone to internal sabatoge, especially when the future is changed.

Plot
Tsubaki first appears in the meeting where Deus Ex Machina explains the rules of the survival game to the twelve players, and she is the one who asks how could they kill the other diary holders if their identities are unknown. Deus replies that the players must use their diaries to gather information about the other players.

Later in the story, Yuno, Yukiteru and Keigo journey to the temple of Omekata cult after being notified that Uryuu Minene was held captive there. Inside the shrine, the trio encounter the leader, the Onukata, a small girll who is sitting seemingly confined in a prison-like cell. The Onukata, Kasugano Tsubaki, reveals that she is the Sixth, her scroll is the [Clairvoyant Diary], and that her Dead End flag had been triggered, marking the time of her death for later that night. She believes that Yukiteru, having already avoided two Dead End scenarios previously, would be able to help her avoid her own Dead End, and so she proposes an exchange: the Ninth for Yukiteru. Yukiteru is left alone in the room with Tsubaki, presumeably so that they could discuss her trade proposal. Instead, Tsubaki tells Yuki of her distrust of her own followers, which is probably why she asked everyone else to leave. Tsubaki also warns Yukiteru that Yuno would ultimately lead to his downfall, citing her woman's intuition as the source of this prediction. Yuno, observing the conversation with her [Yukiteru Diary], becomes enraged. Suddenly, a fire breaks out in Tsubaki's cell, and her followers begin to randomly attack one another, seemingly entranced. Luckily, Keigo repairs the sabatoged water pipes, allowing the fire sprinklers to work properly and to quench the fire, saving Tsubaki from burning to death. Tsubaki screams at her followers to stop massacring each other, and then reveals to Yukiteru that she believes they were hypnotized.

Tsubaki examines her diary, discovering that it is rendered useless when her followers are hypnotized. Tsubaki and Yukiteru then leave the cell, only to be confronted by an angry Yuno who exclaims that Tsubaki will indeed die that night. Yuno then deduces that the fallen followers were not actually dead, begins to hack them with her axe before they could attack her, and tells Yukiteru to choose her and live, or choose Tsubaki and die.

However, Yukiteru refuses to abandon the Sith, and despite Yuno's best efforts to get rid of her, Yukiteru manages to hold onto Tsubaki. As they run towards the shrine gates, the followers snap back to normal, and Tsubaki tries to persuade them to meet the enemy within temple grounds. Yuno vehemently protests, convinced of Tsubaki's deceitfulness, but before Yuno becomes violent, Yukiteru stops her. Keigo notifies the party that the Twelth, Hiraska Yomotsu, was heading towards them.

Just then, Hirasaka Yomotsu appears on the rooftop. After a grand introduction, Twelfth tells Yukiteru that the Sixth is actually a very cruel person who tortured Ninth and was tricking them. He plans to kill her with a bomb, but Yuno, afriad Yukiteru would be affected by the explosion, manages to kills him first. Yuno collapses from exhaustion, and Tsubaki takes the opportune moment to show her true colors and confirm Twelfth's accusations: she was using Uryuu as bait to lure in and kill First, Second, and Fourth. She kisses Yukiteru, enraging Yuno, who breaks free from the men holding her down. Yuno slices her way to Tsubaki. As Yuno swings her axe down towards Tsubaki's scroll, the Sixth moves her arm up, desparately trying to protect her diary, and as a result Yuno misses her intended target--but slices off Tsubaki's right forearm. As Tsubaki is reeling in pain, Yuno gives Yukitery her diary and pushes him to safety just before she collapses and is recaptured. As some of her younger followers treat her wound, Tsubaki bitterly states that ever since the death of her parents in a car accident, she has endured pain far worse than the pain she is experiencing now. When her parents had died, authority of the cult fell into the hands of Funatsu, who what second in command. Under his orders, the followers raped Tsubaki as a ritual. She tells Yuno that the reason she wants to become God is so that she can make this "invisible" world, the world in which she had suffered, disappear.

Tsubaki decides to use Yuno as bait to draw in Yukiteru, annoucing via loudspeaker that Yuno was going to be defiled just as Tsubaki herself had been defiled. Yukiteru then bursts in and declares that he will protect Yuno. He capitalizes on the [Clairvoyant Diary]'s weakness, distracting all her followers by tossing a handball he found while hiding. Tsubaki uses her injured right arm to reach for her diary, forgetting that Yuno had sliced off her hand, and before she couldcdo anything else, Yukiteru pierces her scroll with one of his darts. Tsubaki then begins to cry, looking at the tossed handball, the lost handball her parents had given her, as she died and disappeared.

Near the end of the manga, when Yukiteru leaps back two years in time in the third wold, Tsubaki has a complete different fate. Just before her mother and father leave to go on a car trip with Funatsu, Tsubaki feels witnesses an explosion, and tells her followers to not let her parents depart. Later, a followerz discovers a bomb planted under the car. Tsubaki deduces that Funatsu, was the one who planted the bomb. Tsubaki's parents are saved, and Tsubaki never has to become a victim of the cult.

Trivia

 * Tsubaki smokes as seen when she's smoking from a pipe.
 * Tsubaki is the 3rd Diary holder to die.
 * In Future Diary Paradox, Tsubaki is seen kissing Akise.
 * She is named after Proserpina, the Roman goddess of the spring.