The Japanese sometimes sell BTC Mondays causing 300 USD Bitcoin price drops!
Buying in now is a gamble!
That should not be a worry anyway, for someone who is long. The only worry will come when it is dropping below $6800. Buying and selling is always an educated gamble most especially for traders, and whichever way, the market on 4 hour chart, was already showing some bearish divergence on the 4hr chart anyway, so it is not really like with or without the Japanese, the chances of seeing the value coming a bit down is not possible.