welcome to Hinami bay, a private island where you're free to roam and talk to whatever girl you like. Even seduce them. If you don't have luck with the ladies, try working out or reading at the library to improve your chances.
Hinami Bay features a third person view, in a mini open world. Explore this island day and night to find unique girls.
Raise your stats to talk to higher level girls.
Go to the gym to raise your strength and gain experience.
Go to the library to improve your intelligence and gain experience.
Work at various locations for spending cash.
If your heart gets broken too many times, fix it at the hospital.
If you work too much, or study too much you'll need to take a rest at the hotel.
Most importantly, have fun!