In a world divided between angels and evil creatures, only the young hero Yamato Shintei has the power to defeat the demons...

The bustling metropolis of Kansai, where cybernetic screens litter the neon landscape, may seem like a technological utopia at first glance. But in the dark alleys around the brightly-lit buildings, an unforgiving criminal underbelly still exists in the form of fugitives known as "Akudama." No stranger to these individuals, Kansai police begin the countdown to the public execution of an infamous Akudama "Cutthroat," guilty of killing 999 people. However, a mysterious message is sent to several elite Akudama, enlisting them to free Cutthroat for a substantial amount of money. An invisible hand seeks to gather these dangerous personas in one place, ensuring that the execution is well underway to becoming a full-blown bloodbath. [Written by MAL Rewrite]

The series features colorful stop-motion mascot characters made out of pipe cleaners. In Japanese, "aiseki" refers to the situation of sharing a table at a restaurant with a person you don't know. The show is surreal datsuryoku-kei comedy with a variety of male guest voice actors who banter with Fuyumi and Haruko at a table in the Mongol Cafe.

The story revolves around Sally's search for her grandfather Dr Borman, a researcher who worked on the Zi-Forming scheme. He bestowed her a pendant at the start of the series, with instructions to never hand it over to the Empire. A competing researcher for the Empire: Dr Land seeks to find Sally's pendant. The pendant is shown to possess strange powers, transforming Leo's Zoid into the Beast Liger, and later interacting with Regeneration Cubes - artefacts left over from the failed Zi-Forming scheme. As Leo, Sally, and their comrades journey, they begin to uncover more of what the pendant can do, the relationship between the two scientists, and how it all relates to the Zi-Forming of Earth.