There are several possibilities for individual application. One is to read a teacher's graduate student directly and ask him to write you an invitation letter. But in general, there are many master's programs in the school, and you need language scores or other scores to apply. I'll give you an admission notice after admission, and you can apply.
I wonder if there are any cooperation projects between your school and the Foundation Committee. If there is a cooperation project, no invitation letter is needed. You can get the project after being admitted to the school project. You have to ask your dean or the office of international affairs about this.
I don't know whether you will apply this year or next year. The deadline for registration is April 5 this year, and the time is very tight.