How to store Japanese character in oracle DB?

Question

I want to store Japanese(or any language) character in one column of my oracle database table.

I have used varchar2 as data type. when I am trying to insert this character(ꏕ) to this column its stored as '[]'.

Don't know what to do. Need help.

Note:
I tried to change the data type to nvarchar2 still didn't work.

https://translate.google.co.in/?hl=en&tab=wT#auto/en/Kinj%20A%20%CC%88%EA%8F%95%20%C9%82%20%C8%82%20%C4%82%20%E6%82%A9%0A%ED%82%A9%20%C3%84%20%EA%8F%95%20%C9%82%C8%82%C4%82%20%E6%82%A9