So you mean...you can read or write Chinese classical literature better than I do? Or your citizens study Tang poems, Song lyrics, or Han essays better than us? How many tridional chinese poems or articles in your textbook? Do you even know what the rule and form of chinese poetic rhythm is? How many chinese charactors can average japanese read let alone write? Does chinese zodiac, lunar calender, traditional solar terms still exist in Japan? You guys don't even have Lunar New Year(Spring Festival) anymore. You dont even speak chinese, yet you dare to claim that YOU preserved HuaXia? The so called "northern barbarian" are MUCH MUCH more HuaXia than you guys are. Nalan Rongruo is considered the GREATEST Chinese poet and lyric writer after Song Dynasty, and ANY Qing emperor or even his concubine can outperforms ALL of your emperors in the term of traditional Chinese culture, and Mandarin is their MOTHER TONGUE.
What you preserved is YOUR culture, which WAS heavily INFLUENED by HuaXia, but it was NEVER and is NOT Huaxia culture itself, our culture EVOLVED not DEAD, to say that you guys preserved HuaXia is like to say you preserved the facade of HuaXia yet forsake the soul, a monkey dresses like human dose'nt mean that it is human.