They only study in the third year of high school and see the teacher's introduction. Some of them are very famous (math and English teachers). But I prefer their forum, which is good in content, learning-oriented, relaxed and funny. It's good. If you are a senior three student, you can go and have a look.

It seems that all the teachers they teach are teaching researchers and special-grade teachers.

There is an audition course there. You can try it.