They are neither plants nor animals. They differ from other forms of life such as the micro-organisms and the fungi. Instead they resemble the primeval body of life and are generally known as "Mushi". Their existence and appearance are unknown to many and only a limited number of humans are aware of them. Ginko is a "Mushi-shi" who travels around to investigate and find out more about the "Mushi". In the process, he also lends a helping hand to people who face problems with supernatural occurances which may be related to the "Mushi".

The audio drama (广播剧) is adapted from the original novel by Mo Xiang Tong Xiu. Produced by Polar Penguin Studios, its sole broadcast is on the Chinese audio streaming website MissEvans.com (猫耳FM).

One day, Naho Takamiya receives a letter written to herself from ten years in the future. As Naho reads on, the letter recites the exact events of the day, including the transfer of a new student into her class named Kakeru Naruse. The Naho from ten years later repeatedly states that she has many regrets, and she wants to fix these by making sure the Naho from the past can make the right decisions—especially regarding Kakeru. What's more shocking is that she discovers that ten years later, Kakeru will no longer be with them. Future Naho asks her to watch over him closely.

Необычное и кровавое аниме. Есть нотки пидофилии.

Это божественно! Я ушла в ультразвук. Смотрела за завтраком, в транспорте, на обеде и вечером.