Second day: Festival day. Performances, interactions with fans, maybe some unexpected problem happens, like technical difficulties or rain. She rises to the occasion, showing her leadership and spirit. Could include teamwork with her friends from Aqours.
I should also consider her character traits. She's very passionate, loves singing, and is dedicated to her club. So activities involving her leading songs, motivating others, and maybe some training sessions. Also, her kindness and willingness to help others.
Include specific details like the name of the festival, local traditions, how she interacts with the community, and maybe some personal growth or learning over the three days.
Each day should highlight different aspects of her character. Maybe include interactions with other characters to show teamwork. Also, some light-hearted moments during the festival, like trying different food stalls or playing games.