I teach English in Japan. I have been working in a school as an English teacher for 10 years by repeatedly renewing a one-year labor contract. However, my school has told me that this is the last time they renew my contract. I want to continue working in this school. Is there anything I can do?

2022/5/17

Refusal to renew a fixed-term labor contract is called “雇止め やといどめ Yatoi Dome”. There are legal restrictions on non-renewal. If the restrictions are violated, the refusal to renew may be invalid.
The relevant law is Article 19 of the Labor Contract Act. Simply put, the rule is that in the following two cases, if a worker wishes to renew his or her contract, the contract will be renewed even if the employer refuses to do so, unless there are objectively reasonable grounds for the rejection and the refusal is found to be appropriate in general social terms.
Case(1): The rejection to renew repeatedly renewed fixed-term labor contracts can be seen as equivalent to terminations non fixed-term labor contracts.  
Case(2): There are reasonable grounds for the worker to expect the renewal of the fixed-term labor contract.