When I saw the prices of crypto currencies there is almost every coin's price fell upto 20%.Do you think this is just happening due to South Korea's ban over crypto currencies or there is other reasons for that.
I hope the condition will be back normal soon but I am worried a lot.

The bitcoin price drop might be due to some government actions partculaly the ongoing crackdown in china followed by spreading FUD. It may also time for bitcoin to consolidate its price after a long price uptrend last year.