The plot of this OVA is a rough adaptation of the first four chapters of the Guyver manga. It covers the same basic elements of these chapters; Genesis of the guyver, Fight with Vamore, Fight with Guyver 2 and the introduction of Guyver 3. Main differences are the exclusion of Tetsuro and his replacement by Mizuki, The replacement of Lisker with a female Agent "Valcuria", and thus a female Guyver 2. There is also a look at Sho's psychology of how he deals with his situation including a very harsh moment where his friends are assassinated in cold blood. One night, high school student Sho Fukamachi discovers a mysterious metal object. Then in a blinding flash of light, Sho finds that he has accidentally fused with the Guyver, a mecha of mysterious alien design. Now, to save his girlfriend, Mizuki Segawa, along with the entire world, Sho must become the Guyver to fight the Chronos Corporation and their biocreatures, called Zoanoids, who are hell-bent on world domination.

Rei Kigata is a first year middle schooler at Ishido Middle School. He is not a believer of any paranormal phenomena such as existence of ghosts or spirits in any kind, but one day at midnight, while he is sleeping, a mysterious newspaper called "Horror News" is delivered to his room. The newspaper tells a story in which one of his teachers at the school will get killed in a car accident the following morning and Kigata will be a witness of the accident. The story turns into a fact in the following day and since then, the mysterious newspaper is delivered everyday. He realizes he is haunted by this newspaper and that his life span would be shortened in 100 days every time he reads it. (Source: Crunchyroll, edited)

Among the high rises of steel pipes, meshed power lines, and faded neon lights, exists a game that children dare to play within the ruins of the old city. "Otokoyo," a secret game of hide-and-seek, one where all who play wear fox masks and only begins when seven have gathered. But it is no normal game, as all who have played it have gone missing. Many whisper it is the work of demons, but that is just a rumor... or is it? Kakurenbo follows the story of seven children as they play Otokoyo for the first time and discover why if you play, you never return.

The theatrical anime film is a full digital (3-D) action/horror film based on a manga by Tamaki Hisao, best known to Western fans for his manga adaptation of Star Wars: A New Hope. Characters were designed by Yasushi Nirasawa, a well acclaimed maker of creature action figures. Monkey Punch (Lupin III creator) served as the film's script superviser. Set in the year 2088, it depicts a dark future in which humans have been transformed into the "Guilstein," creatures with no human souls in them...