Science, Japanese have to pass level 2, and English is best to take TOEFL. Collect information in official website, the university you want to go to, and find the research department that suits your situation, because the postgraduate discipline is still very detailed. I'm going to write your research plan according to the situation of my university. Although senior two is not in a hurry to contact the professor to introduce himself, it is necessary to think about what kind of knowledge to use in advance to expand the major and prepare the research plan.

Please refer to jp.com/ of Koharu Net for the specific process.

Read all the top posts of the college edition ~ you will basically know ~ please refer to my answer for the time.

I am also one of the students who apply for university. I wish you success in studying abroad. ~