The coming-of-age battle story will center on the famous 17th-century Japanese warlord Date Masamune when he was young. The Date clan took its name from the Date region of the former Mutsu province, which comprises part of the modern-day city of Date. The anime will be the first in the city's "Kirari na Wonder Project" (Twinkling Wonder Project), which aims to highlight tourist attractions and the appeal of the region. Gainax's newly founded Fukushima studio will work on the anime, and will complete it at the end of March. The anime will have a private screening in April and will also screen in anime events and be posted online.

The story takes place in old Tokyo, the Tokyo of August-September 1923 (Showa 12). At this moment in time, the city is a mixture of extremes... past and present, rich and poor, good and bad. This is a city where we see both horsecarts and motorcars, swords and pistols, lords and businessmen. A wealthy woman from an upper-class family finds herself attracted to a handsome young man, Taka. He and his younger brother seem to be allied, perhaps not entirely willingly, with some of the city's criminal underground (Yakuza). The lady's lovely young maidservant, Sara, meets him too, and a conflict ensues which can only lead to tragedy, passion, and dishonor. But, as events move on, and the days pass, the viewer sees a terrible date coming closer... that unforgettable day of September 1, 1923, at 11:58, when the Great Kanto Earthquake and tidal wave struck Tokyo, causing the death of almost 100,000 people, one of the greatest disasters in human history.

Hisashi Seki, ordinary working guy, wakes up one morning to find a naked, and very amorous, girl in his bed. He's happy to take advantage of the situation, to their mutual satisfaction. However, the girl's appearance leads to all sorts of increasingly strange phenomenon. The cause lies, sort of, in Jungian psychology. The girl, whom he has named Asami, is from a parallel dimension where people's ideal partners - the anima to their animus, or vice versa - reside. Asami's longing has allowed her to cross dimensions to be with Seki, but her presence in his world upsets the natural order. She goes back, and Seki must venture to her world to save her. The lovers are reunited. However, matters don't turn out quite as they hoped.

Despite being a refugee from an extinct planet, having an alcoholic as a father and an airhead for a mother, Maris' biggest problem is that she's a Thanatosian. Considering that Thanatosians are six times stronger than the average Earthling it shouldn't be such a curse, especially in a galaxy where violence is rife. But the accidental destruction she wreaks on everything she touches —even with the exotic alloy restraints she wears— means she's constantly in debt. Every mission she's assigned to by the Inter-Galactic Space Patrol becomes a cash-drain when all the damages are docked from her wage. But when she's selected to rescue the rich and sexy Kogane Maru it's like a dream come true. After setting him free from the terror of his ruthless kidnapper his eternal gratitude will surely guarantee marriage —and an end to all her financial headaches.