Tsubaki Kasugano

All Future Diary: Clairvoyance Diary

A shrine maiden who serves as the leader of the new religious group "Omekata-kyo." She was born with weak vision in her left eye, and her right eye is hidden by her hair. She usually stays in a confinement room.

She is called "Omekata-sama" by her followers, but in reality, she has been repeatedly abused by them since the death of her parents, the previous leaders. As a result, she harbors the desire to destroy the world, thinking, "This world doesn't need to exist," and aims for the throne of God.

The scroll she possesses, the "Clairvoyance Diary," has the ability to record future "reports" from over 1,000 followers and guests. This allows her to grasp a wide range of information and obtain details from distant locations. However, since the content recorded is based on reports from others, it is vulnerable to information manipulation. Therefore, Hirasaka, who uses hypnosis, is her natural enemy.

She attempts to capture Yukiteru, Yuno, and Kurusu by using Minene as bait, but when a DEAD END flag is raised, she plots to change her fate by using Yukiteru. After defeating her natural enemy Hirasaka, she reveals her true nature and tries to have the weakened Yuno raped by her followers. She attempts to kill Yukiteru by holding the crying Yuno hostage, but Yukiteru uses the information disruption technique applied by Hirasaka, destroys her diary with darts, and she disappears.

In the third world, her parents do not die, and thus the cult does not become corrupt. She falls in love with Aru Akise (this is the same as in 'Future Diary Paradox').

Her name is derived from Proserpina, the Roman goddess of spring.