If you are watching the series for the first time, ensure you haven't missed these related "episodes" that lead into the movie:
If you are looking to treat the opening of the movie as "Episode 1," 5-toubun no Hanayome Movie - Episode 1
The first portion of the movie uses a non-linear narrative to show the events of the festival from different perspectives. Key "Episode 1" Events: If you are watching the series for the
Ichika balances her acting career with the festival, eventually sharing a moment and a kiss with Futaro in a park. Watch Order Context 5-toubun no Hanayome Movie - Episode 1
Miku works at a takoyaki stand and deals with a fire incident while spending time with Futaro.