Spin-off of the anime.

In the place of Shikizakura (cherry trees), where autumn leaves and cherry blossoms are flourishing and where human world intersects with the demon world, a ritual to save the human world is about to begin...

Prequel to the Getter Robo Armageddon anime. Also published in the Getter Saga version of Shin Getter Robo.

The Great Collapse Era. In the near future, civilization has collapsed due to a large-scale disaster and war, and has one foot in the apocalypse. Detective Zoe, a young girl struggling to maintain security...

This story takes place on an island named Southern Cross Isle. One night, a boy named Takuto washed up on shore, after having swum from the mainland. He later, enrolls in Southern Cross High School as a senior...

Together with his robotic pet, atom, Sho Tobio travel from Japan to Dong Bei City in People Republic of China. tetsuzin-1His mother, Saeko, is a scientist graduated from MIT who is assigned to reevaluate...

A side story that takes place in the period between volumes five and six of the original manga.

Original Webtoon

For 2000 years, a separate race of humanity has lived on the moon. Known as "the Moonrace," their technology is leaps and bounds beyond those that stayed behind on the Earth's surface. Now seeking to return to...