The story of the time travel of the unscrupulous ZOO members.
Characters: black crow, black koala, black cat, black sheep, black dog, black rabbit.
A story about a group of unscrupulous guys who picked up a notebook and traveled through time inexplicably.
It's a bit of a joke. For example, the first ninjutsu that Xiaoyang used after becoming a ninja was created by Koala, and it was called: Iron Release: Great Shift of the Universe!
The characters are introduced in the first chapter.