So this is just an update to let y'all know how I've been doing with my blonde adventure.
Needless to say, my Asian hair is very resistant and despite two 30vol bleachings, it is still yellow. But at least the orangey ginger color it had last week is finally GONE.
I'll probably need another round of bleach before I get pale blond, as there's still too much yellow in my hair. I sure am glad I bought an extra packet of bleach powder! :D