Which career path should I follow?

I currently live and was born in the states but one side of my family is from Japan and lives there. After spending many trips there visiting them, I was thinking of moving there for a few years or even possibly just living there for the rest of my life. I haven't really taken a test to see where my japanese is at but if I had to guess (since it's just a language I use to speak with relatives) I'd say N3.

Now, I was wondering what would be the best career path to follow in my education for my optimal benefit. I am currently a junior in high school and here are the two paths I was thinking (I have interest in all of STEM, but specifically bio)

1. Undergrad in the U.S. in some sort of engineering like biomedical, spend some time getting better at Japanese, and then get a job in that field in Japan.

   1. Or, attend undergrad in Japan and earn a Japanese degree in something related to bio

I'm asking because I don't know if Japan prefers an American degree over a Japanese degree, and it'd be easier for me to afford the American degree. (By that I mean with student aid, the American degree is cheaper but at the same time, Japanese tuition is already cheap on its own without student aid if you choose to privately finance.) Despite being Asian, I'd still be considered a foreigner because of my U.S. nationality and appearance.

I am also open to any other paths or career options. Thank you, I highly approve it.