[chryuop]

Just to make you understand. Furigana is a set of kana which appears on top (or on the said depending on wheather written western or eastern style) of a set of kanji. These characters are there to tell you how to read that kanji.

If you live in a western country I doubt you need to feel the second box. Even if you were Japanese it might create problems to have a package sent to you with kanji in the address.