Japanese universities and colleges take credits, taking 24 courses a year and 48 courses in two years (it seems that I have graduated for a few years, I can't remember), and then I passed my thesis before graduation.

Look at the words "credit/unit" below, which means that you can get 2 units after you finish this course and pass the exam.

From the website you gave me,

"Majoring in * * * general subjects": It means that you can take elective courses no matter what your major is.

"Basic course": it is a compulsory course.

"Specialized subject-@ @ credit field": refers to the subject that only those who specialize in undergraduate courses can take.

If you take a political course, you can choose a comprehensive course according to your own situation.

Just make sure you take enough classes.

In fact, the key to going to college is to choose a good tutor. But I want to remind you that Tsukuba University is a good university, and English may be very important. Other universities that are almost inferior can do without English. Besides, I think there is research in the course, so I may need some math knowledge and analytical skills.

I suggest you go directly to the university information, because you can get a more correct answer than asking here.