This is the most basic requirement, specifically whether you need GRE or GMAT, IELTS or TOEFL or TOEFL. It depends on the requirements of the research department of the university you are applying for. You are an American undergraduate, and your English should be good. Applying for English teaching will have an advantage.
Establishment of G30 Project College:
National universities: Tokyo University, Kyoto University, Nagoya University, Osaka University, Tohoku University, Kyushu University, Tsukuba University.
Private universities: Waseda University, Keio University, sophia university, Meiji University, Tongshe University, Ritsumeikan University.
————————————— Blue study abroad solution.