The original visual novel 'Ef: A Tale of Memories' developed by Minori is released in Japan, introducing the story and characters to players.
The sequel visual novel 'Ef: A Tale of Melodies' is released in Japan, continuing the story from the original game.
The anime adaptation of 'Ef: A Tale of Memories' directed by Shin Oonuma premieres, bringing the story to a wider audience through television.
The anime adaptation of 'Ef: A Tale of Melodies' premieres, continuing the story from the first anime season.
The PlayStation 2 port 'Ef: The First Tale' which includes content from the visual novel is released, expanding platform availability.
Renji and Chihiro meet for the first time under unusual circumstances, marking the beginning of Renji's emotional journey.
Renji supports Chihiro as she struggles to recover her missing memories, deepening their bond and advancing the story.
Hiro meets Miyako, initiating their complex relationship filled with misunderstandings and growth.
Hiro learns about Miyako's troubled family background, shaping his feelings and actions towards her.
Chihiro graduates, creating a turning point for her and Renji's relationship and future paths.
Renji openly confesses his feelings, marking a critical moment in their relationship.
Miyako confronts and begins to reconcile with her family, allowing her to grow emotionally and deepen her bond with Hiro.
All main characters gather during the summer festival, culminating in emotional resolutions and character growth.