使用者:HWTOF

I'm Japanese Wikipedian. Main page is Ja-Wiki-page.

• I know about…
  • Japanese History (Modern)
  • Chinese History (Especially, "Before Qin")
  • Economics (Currency)
  • Mayan civilization

• I know a little about…
  • Chemicals
  • Mathematics

• I don't know about… (I know little)
  • Biology