A student at Hakuhou High School, she was supposed to research the “Divine White Stone” with her classmate Sato Yusuke in their research seminar. However, after an argument, she ended up going to the site alone. However, while investigating the sacred stone, she is struck by a strange thunderbolt and time-slips back to the Edo period.
Furthermore, because she possesses the body of Daihachi, who had been unconscious in that era, the story takes an unexpected turn.
At school, she belongs to the archery club and boasts impressive accuracy.

The third daughter of Sanada Yukimura, possessing strong spiritual abilities. She escapes the chaos of the Osaka Summer Siege and hides herself in the castle of Katakura Kojuro of the Date clan. During battles against supernatural beings, she chants mantras to aid Asuka and the others.

The second son of Sanada Yukimura, he escaped the chaos of the Osaka Summer Siege and hid himself in the castle of Katakura Kojūrō of the Date clan.
While fleeing the war, he was struck unconscious by lightning from the calamity-bringing deity (Kagutsuchi-no-Kami), but Asuka then possessed him.

Hakua and Hakuun are divine messengers sent by Hakusan Daigongen, a deity connected to the Sanada clan. They usually take the form of dogs, but when disaster befalls Ame or Daihachi, they transform into the battle mode shown on the right to protect them. The one with its mouth open is Hakua.

Hakua and Hakuun are divine messengers sent by the god Hakusan Daigongen, who has ties to the Sanada clan. The one with the closed mouth is Hakun. When transforming into battle mode, a small horn sprouts from the center of its head.

A renowned commander who earned the title “Demon Kojuro” for his exploits as a Date clan retainer during the Summer Campaign of Osaka, including slaying Gotō Matabee. He accepted the request of enemy commander Sanada Yukimura and sheltered his children.

The seventh son of Date Masamune, despite being only 17 years old, he climbed Mount Katta on Mount Zao, which erupted violently in 1624 (the first year of the Kanei era). and subdued the great bird to quell the eruption with the help of Asame and others. To this day, a monument titled “Monument to Lord Munetaka, Daemon Taifu of the Date Clan” stands on Mount Katta.

A student at Hakuhou High School and Asuka's classmate. He belongs to the kendo club and is dedicated to his club activities, but he dreams of leaving Shiroishi one day to make a big leap forward in a larger town.

The massive earthquake that struck Miyagi Prefecture in 1616 also damaged Sendai Castle. Deep underground in Shiroishi's castle town, a giant catfish spirit was running rampant.

A firebird spirit that caused a massive eruption of Mount Zao from 1623 to 1624, sending ash falling as far as the castle town.

A temple near the Nanakita River in Sendai City preserves a legend of two lovers, thwarted by fate, who transformed into a great serpent and plagued the villagers.

The Kaenshin, the half-body of the Magatsuhi-no-Kami(The King of Calamity God). It attacks by freely manipulating fierce flames.

The Jinraishin, the other half of the Magatsuhi-no-Kami(The King of Calamity God). It attacks using terrifying thunder as its weapon.

The boss Arakami who brings disaster. It uses the ayakashi under its control to bring calamity upon Shiroishi Castle Town.

At the “Shiroishi Sacred Stone” site, launch the website via the QR code in the lower left corner using your smartphone. Point your camera at the signboard to make “Hakua” appear.