USD/JPY surpassed the 154.00 level during Monday's U.S. trading session. On the 4-hour chart, technical indicators are strongly supportive of further price increases. However, the Relative Strength Index (RSI) suggests that the market is overbought, which could lead to a short-term price correction before resuming its upward trend. While this may temporarily decrease prices, it also presents a buying opportunity for investors looking to join the uptrend.