Half day in Nikko is actually a little rush, however, it can still be done. For me, I have put my top priority as the waterfall and Toshogu shrine, which are the 2 main place I would want to visit and as for the rest I could skip them or visit them next time. In the end, I have carved out a simple itinerary for that day.
Where we went?
Kegon waterfall->Nikko Futarasan Jinja (Photo took only)->Toshogu Shrine-> Shinkyo (Bridge) (Photo only)