Reisuke Houjou

All Future Diary: Hyper Vision Diary

Yukiteru's mother Rea's colleague's son. 4 years old (5 years old in the anime). He often plays with a pair of puppet dolls modeled after a boy and a girl, which he wears on both hands. He possesses the cruelty typical of a child, a strong elite mindset, and an intelligence that far exceeds his age.

His picture diary, "Hyper Vision Diary," has the ability to record his future three times a day: morning, noon, and night. Due to its nature, it contains less information compared to other future diaries that record events continuously, and is thus considered the weakest diary. Despite being hand-drawn, the images are displayed as moving pictures.

After losing his parents, who were followers of the Omekata cult, in an incident, he is temporarily taken in by the Amano family and attempts to kill Yukiteru and Yuno as a game. He sets up a cyanide gas trap that nearly kills Yukiteru and challenges Yuno to a game involving the antidote. Although he corners Yuno at one point, with Yukiteru's help, who disregards his own life, Yuno stabs him along with his diary with a knife. He then hands the antidote to Yuno and predicts that they will eventually have to kill each other. He disappears, wishing for Yuno, who defeated him, to ultimately win.

He was treated coldly by his parents (to the point where they fought each other almost to the death), so he harbors no grudge against Yukiteru and Yuno, who avenged his parents, and even holds affection for them. However, in "Future Diary: Mosaic," it is revealed that despite considering his parents to be failures, he still wanted to be pampered by them.

In a bonus manga in volume 3, when selected by Murmur as a future diary holder, he sets the condition of meeting an alien to participate in the game and travels to space using Deus's dish as a UFO.

In the third world, where the Omekata cult incident does not occur, his parents are alive, and he lives happily with them. In "Redial," he serves as Aru Akise's assistant, "the future detective's assistant."

His name is derived from Ceres, the Roman goddess of agriculture.