From the four hour chart, we see how the price is correcting with strength and is now around the fibo 50 (marked from 84.823 to 90.776). It lost, again, the support at 88 yens per dollar, hinting a larger drop after building a resistance at 88.529. The 87.69 are the next goal, leaving the 200 days MA over the price. The RSI is marking oversold, hinting that the price needs to rest before continuing beating 87.16, targeting 86.627. Above, it will be fundamental for the price to break the support at 88, trying to break the intraday high and leaving a hammer candle on the daily candles chart, which would suggest a trend shift for tomorrow.