The beach work invite lili there which visit the beach and rented it cg after she done talking to 11 party member that in your group cg happen shack for battle strategy done mock battle after that unlock the slot battle strategy on the overview map
Thank your help I figured out what I did wrong, turns out I just had to use Lili in one overview map battle, after that, I went to talk to her and that unlocked the beach scene. Thank you for your help.
