I am applying graduate programs in Japan. Any suggestions?

Hello!
I am recently planning to apply for the graduate program in Japan. I am currently studying economics at UCLA but not having an outstanding GPA. My GPA would be around 3.2 after this quarter, and I hope I could make it higher when I officially graduate. I had a pretty bad studying habit during my junior year, so my GPA dropped down. I have been asking my friends who are studying in Japan, and they said they could guarantee me to at least get into Waseda's English-speaking Econ Graduate Program since I am from a top-ranked collage, if I keep my GPA above 3.0. I don't really believe what they said, and I think it won't be an easy task to get into grad school in Japan due to its limitation of acceptances of English-speaking students. So I am asking for your help. Could you guys give me some suggestions on my applications, and do they really care about GPA if I have a very strong personal statement?

thanks,

I didn't find the right solution from the internet.
References:
- https://www.jref.com/forum/threads/i-am-applying-graduate-programs-in-japan-any-suggestions.61336/
- <a href="http://blog.advids.co/20-video-examples-from-lead-management-software-solutions-and-platforms/">Lead Management Solution Video</a> Examples