When applying for human and social sciences major in Japan, I’ll learn based on the oriental culture, which preserves virtues like honor, the word, cooperative work, discipline and hard work. Things that are very/extremely important for the continuous evolution of humankind. I’m certain that the Japanese culture has a lot to teach to us all."
Studying social for a sciences major in Japan, I’ll also absorb much about the Asian culture which values virtues like honor, keeping one´s word, teamwork, discipline and hard work.
I think the writing is already a sign that you "apply", so I edited here.
Plus, on second thought I would leave out "hard work" first of all - it´s a cliché of sorts, and one could ask "what about other cultures? Don´t they value hard work? Just saying...
The "...I´ll absorb
" part can be still redone into "...I expect to/I hope to absorb
Things that are very/extremely important for the continuous evolution of humankind. I’m certain that the Japanese culture has a lot to teach to us all."
Again, I would strike out the above italicized part and write something else, it´s unquestionable - nobody can deny it, but I don´t know how original it would ring. Anyway, it´s up to the writer. This is just a comment of mine.
All in all I must congrat you for you writing, you are on the right path. Your spelling of words is good and the expressed ideas are well understood by the reader, it lacked just some touches. You might also work a little bit more on punctuation, just a little bit.
Good luck with your English study. I hope I have been of help.
See ya around !