Li Yao, a genius craftsman, has been unable to break through the bottleneck due to the low development of his psychic powers, and then he obtained 40,000 years of cultivation by chance. Knowledge, thus opened up, but still missed the joint entrance examination. With the encouragement of friends and mentors, relying on his willpower to regain the opportunity to participate in the joint entrance examination, he finally entered the university of his choice and entered the story of realizing his dream of becoming a craftsman.

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.

Two OVA episodes featuring additional stories. Episode 0: Ritsu and Takano used to date back in high school, but broke up due to a misunderstanding. This is that story. Episode 12.5: Hatori and Chiaki go to visit the latter's family. It's really awkward in many, many ways.

Hajime Kindaichi's unorganized appearance and lax nature may give the impression of an average high school student, but a book should never be judged by its cover. Hajime is the grandson of the man who was once Japan's greatest detective, and he is also a remarkable sleuth himself. With the help of his best friend, Miyuki Nanase, and the peculiar inspector Isamu Kenmochi, Hajime travels to remote islands, ominous towns, abysmal seas, and other hostile environments. His life's mission is to uncover the truth behind some of the most cunning, grueling, and disturbing mysteries the world has ever faced. [Written by MAL Rewrite]