Makoto Konno is in her last year of high school, but is having a hard time deciding what to do with her future. In between enduring the pressure of her teachers and killing time with her best friends, Makoto's life suddenly changes when she accidentally discovers that she is capable of literally leaping through time.

Toki wo Kakeru Shoujo follows Makoto as she plays around with her newfound power. However, she soon learns the hard way that every choice has a consequence, and time is a lot more complicated than it may seem.

[Written by MAL Rewrite]

Tenchi runs off into the woods to spend some time alone after his friends have another argument. While lost in thought, he hears a voice coming from a camellia tree. Tenshi approaches it and vanishes through a portal. Six months later, Tenchi still has not returned home. Though most have given up the idea of ever finding him, his friends refuse to lose hope and have split up into two teams. Aeka and Ryoukou remain on Earth to investigate while Washuu, Sasami, Kiyone, and Mihoshi comb the rest of the galaxy in search. Their efforts eventually pay off when Tenchi's energy is picked up on their radar. However, the happy reunion will have to wait as the girls gear up for their biggest challenge yet—Tenchi seems to have completely forgotten them and is living happily with another woman. Instead of solving their problems, finding Tenchi has left them with even more questions. [Written by MAL Rewrite]

Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered. 

When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. 

It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.

(Source: ANN)

It is the dawn of the 21st century. The cataclysmic earthquake which reduced half of Tokyo to a broken landscape of twisted steel and shattered stone was only the first sign of the impending apocalypse. Athletic and popular, Isato Kaiza was an otherwise ordinary student. But nothing could've prepared him for the day he was given a Caizer Stone by fellow student Kash , alias Hellstinger. Armed with the mysterious crystal, Isato now possesses the power to transform into the armored hero: Gowcaizer! To save the Earth, Gowcaizer and Hellstinger must join forces against Omni Exist, the manifestation of all negative human desires, and the force behind the recent disasters, before the entity obliterates the human race!