Permanent prohibition is a violation of the law.
In Japan, a “non competition clause” is recognized to regulate the withdrawal of profits from a company by a departing employee.
The terms of this clause are stated in the labor contract.
However, the clause has a time limit, and the Ministry of Justice in Japan has made a balancing act to ensure that the worker's interests are not significantly harmed.
Most past cases have ranged from three months to two years.
If it is too long, the company can tell the Ministry of Justice and it will be found invalid, but if it is up to 6 months, the company's claim will first be accepted.
If that period is not reasonable, the case can be taken to court for invalidation.
For vtubers, 3 to 6 months seems to be the most common.
After all, 6 months will soon pass if you are making a body or undergoing compliance training to your new company, so it is not considered to be a significant loss of rights on the part of the departing employee.
Although ANON insists on permanent regulations, Japanese law allows companies to insist on regulations up to 6 months.
Also, the appropriation of company secrets, such as the privacy of co-workers or technical trade secrets, by a departing employee can be permanently regulated under a different law.
That would be the viewpoint of interference with business.
Translated with
DeepL.com (free version)
