Where did you first see this (e.g., a file-sharing site, a GitHub repo, or a specific forum)?
The "Beach" isn't just a cosmetic choice. The map uses shallow water and high-ground cliffs to create bottlenecks. Master the high ground, and you control the match.
Once free time is unlocked, progression typically involves managing the character's energy and visiting locations at specific times of the day. Consistent interaction is necessary to build rapport with the different characters found throughout the map.