Yen pairs really took a battering last month. However, this month should see a fightback from the yen bears.
Having said this, USDJPY seems to be coming back down to the bottom of it's downtrend channel and a reversal is on the cards.
However, I would be cautious as this pair has come down very strongly forming a very bearish daily/weekly/monthly candle on the close of Friday.
I hope to see USDJPY dip further on Monday/Tuesday with signs of bulls coming in to the London/New York sessions on either day to give me confidence before going long.
Trade safe and good luck!