In his travels through Canada, Boyfriend met up with Lav, a blonde girl from there who challenges him to a musical battle, so you now have to defeat her on the following list of songs:
Deam Natura Old
Boyfriend Vs Lav: Frostbite Frenzy!
In both the story mode and free play mode, you only win if you reach the end of the songs by playing all their notes according to the charts, so when you see arrow symbols matching above BF’s head, you need to press the identical arrow keys.
Know that missing doing that multiple times in a row leads to your loss because you have messed up the chart too much. Start right now, and good luck we wish you all!