You know you can learn Japanese as part of your degree, whatever you are studying, you have interdisaplinry modules. I did Japanese in my first year, you can do basic in first year and intermediate in the second year, however there is no 3rd year modules for it.
The teacher is very good she is native Japanese living in the UK and also teaches adult classes in Birmingham, in the second year if your skills are good enough she will let you enter an inter university speaking competition and if you are her student she is willing to write you a letter of recommendation if you apply for a Japanese work permit or for the JET programme.