GBP/JPY rose to as high as 143.93 last week and break of 142.71 resistance indicates resumption of whole rise from 123.94. Initial bias stays on the upside this week for 61.8% projection of 123.94 to 142.71 from 133.03 at 144.62 first. Break will target 147.95 medium term structural resistance. On the downside, below 142.16 minor support will turn intraday bias neutral and bring consolidations, before staging another rally.
In the bigger picture, rise of 123.94 is still as the third leg of the sideway pattern from 122.75 (2016 low). Break of 147.95 will target 156.59 resistance (2018 high). On the downside, break of 133.03 support is needed to confirm completion of the rise from 123.94. Otherwise, further rise will remain in favor even in case of pull back.
In the longer term picture, price actions from 122.75 (2016 low) is still seen as a sideway pattern for now. Sustained break of 55 month EMA (now at 143.73) will carry long term bullish implications. But still, firm break of 156.59 resistance is needed to confirm the start of an up trend. Otherwise, overall outlook will be neutral at best first.