Crazy Hospital Fushigi no Kuni no Tenshi

The player controls a young man who feels sick and visits a hospital. Once there, the plot split into different paths, depending on the choices of locations, dialogue responses and actions made by the player. All the branches involve focusing on one of the several available female characters (patients, nurses, the receptionist, etc.) and pursuing the short courting process to the point of its intimate conclusion.

[From Mobygames]