It’s been 7 years since Yuuichi Aizawa visited his aunt Akiko, but now that his parents have gone to Africa to pursue their careers, he is finally back in the little northern town. Yuuichi is not really overjoyed with the prospect of living here though, because all of his memories of this place and the people living in it have mysteriously vanished. His cute cousin Nayuki seems like a stranger as well, even though he used to play with her all the time when they were younger. On the day of moving into his new home, Yuuichi starts unpacking the boxes and stumbles upon a red headband that no one seems to recognize. This is one of the first clues that will make Yuuichi take a stroll through the snow-covered town and make him start recalling fragments of his past, broken promises and buried secrets. Yuuichi soon realizes that there is something supernatural going on, and all of his new female acquaintances seem to have links to his forgotten past.

The spring has come since Yuuichi reunited with Ayu, and lives of all major characters are back on track. When Mishio visits Makoto's birthplace, however, a miracle happens before her eyes. (Source: ANN)

Mikiya Kokutou gives Shiki Ryougi a cat to watch, as he will be away for a little while. Though Shiki protests, he leaves the cat anyway, and Shiki is stuck trying to understand her new feline companion. But as luck would have it, the cat seems to have taken a liking to Mikiya and misses him. Later in another part of the city, Ririsu Miyazuki visits the place where her dear friend committed suicide. She intends to end her life as well, but she meets Fujino Asagami, a blind classmate with a traumatic past. Though the two girls don't have much in common, Asagami reminds Miyazuki of her lost friend and helps her understand her pain. Two months later, Mikiya elects to celebrate New Year's with Shiki instead of his family, which makes his sister Azaka very upset, leading to her spending the holiday with her school friends. As the snow begins to fall, Mikiya reflects on what he wishes for most of all: that Shiki's life be filled with happiness.

500 years ago in the Tensho Era of Japan, a man was born who defied the will of a demon; a man who had gods of good on his side; a man destined to battle evil....his name was Kabuto. Somehow, Kuroyasya Douki, the vile Black Night Demon, escaped his prison in hell and returned to the earthly plane to wreak vengeance on the family-line of Kabuto. None can escape his deadly magic and masterful skills with the blade; however, the gods of the North, West, East, and South band together to help Kabuto stand for Justice. With the questionable help of a diabolical talking sword that his own father forged, Kabuto may live another day to see his own sons born....