I know that the tube is removed. (Volume 1 whole volume)

the publisher:
Author: Sakura Kaki
Size: 128mm x 182mm
Number of books: 1
Language: Japanese
Category: Youth manga, manga
Latest release date: 2022-05-23

Synopsis:
The darkness of the class is revealed !!

"I got the back dirt of all the classes☆」

The twin tail girl, the tube, which was said to be the first day of the transfer school.
New classmates who are upset by the sudden remarks of the transfer student.
And the teacher was no exception to "all class members" ...

――The students realize when they laugh.

This woman is dangerous.

Now, Karisome's school life is over,
The darkness of the class comes out.