An enhanced port to the PlayStation Portable featuring additional content and titled Tokimeki Memorial Girl's Side Premium ~3rd Story~ was released in 2012.

The game features all the additions that were made to the first two games in their DS versions, but adds new features like the 3P mode, where the main character can date two of the boys at the same time or the Pride vs Pride mode, where two boys in 3P mode will fight over the main character.

The Premium version added a new character, Tatsuya, renewed graphics with a 2D animation system, and the "Boys' Life", mode, where the player can watch super-deformed versions of the main male characters interact with their bedrooms.

While leading a normal high school life including academics, club activities and part-time work, it is also possible to become friendly with boys who can make a declaration of love on graduation day.

In her first day at school, the main character remembers that the two boys were the Sakurai brothers.