There are 14 hidden coins scattered throughout the world, which are needed for specific achievements like "Cash in the Bank". Key Objectives & Achievements
Most PLAZA releases include an ISO file that needs to be mounted or a setup.exe for direct installation. Sumire.Sunflower-PLAZA.rar
Complete tasks for all creatures and humans in a single playthrough. There are 14 hidden coins scattered throughout the
A specific item that can be fished up at the red bridge, often linked to the girl with the blue shoe quest. A specific item that can be fished up
Ensure you copy the contents of the "PLAZA" folder into the game's installation directory (if it isn't already automated) to bypass DRM. Guide :: Sumire - Achievement walkthrough - Steam Community
Use a tool like WinRAR or 7-Zip to extract the contents.
According to community guides on Steam, notable tasks include: