The Imperial Seal has been passed down through the generations since ancient times. It confers great power unto the warriors that it chooses. This is the story of those warriors. It is a time of chaos and of civil war. It is a time when great armies clash in titanic battles and great heroes carve their names in history. It is also a time of death and destruction, when the people of the land live in constant fear of the sword. Onto this stage steps the reluctant Rikuson (Lu Xun), whose family had been the guardians of the Imperial Seal up until it was stolen by Sonsaku. At the behest of his mentor Rikuson offers his services to Sonsaku with the intention of confirming the will of the Imperial Seal. However, assassins strike down Sonsaku and the Imperial Seal is lost. So begins, Rikuson’s journey to recover the Imperial Seal and discover his destiny. (Source: AniDB)

It is the 25th century. The dark lord has 'infected' history with time-devices that could damage history beyond repair. Flint and his father lived in the prehistorics when they got turned into fossiles. They are discovered and Flint ges turned back to his original state. With the help of his father, a boy Tony and a girl Sara he has to travel trough time to bring the time-devices back to the land of time so history will be saved.

The young Kimball Kinnison is leaving home for a wider education when a Galactic Patrol ship crashes on his family's land and the dying pilot gives him a mysterious Lens. Half-sentient, the Lens now implanted in his hand becomes the focus of changes in Kim's life including his father's death, a space battle, and an encounter with Galactic Patrol nursing officer Chris. Impelled by the Lens, he discovers a new world of experiences opening before him and he risks his life to save Chris and the Universe. (Source: AniDB)

A technological hell masquerading as paradise, Tsukimihara Academy is an artificial high school that serves as the setting for the next Holy Grail War. Created by the Moon Cell computer, the school is inhabited by Earth-projected souls who have even the slightest aptitude for being a "Master." Of these 256 souls, 128 will be chosen for the main tournament and granted a Servant. With all of the Masters selected, the Academy activates a purge, targeting the remaining lifeforms for elimination. Awakening in a pool of his own blood, Hakuno Kishinami refuses to die. Fueled by unknown feelings of hatred, he vows to fight for survival. As he struggles to escape from a relentless pursuer, he finds a crimson blade plunged into the ground; and by pulling it out, Hakuno summons his own Servant, Saber, who instantly destroys his pursuer in a flurry of rose petals. With his newfound power, Hakuno must now begin his journey to Moon Cell's core, the Angelica Cage. There, he will unveil the reason for this artificial world and the secrets of his own blood-soaked past. [Written by MAL Rewrite]