Specials
2011 • 2 Episodes
Season 0 of Sekai Ichi Hatsukoi: The World's Greatest First Love premiered on March 22, 2011.
Season 1
2011 • 12 Episodes
Season 1 of Sekai Ichi Hatsukoi: The World's Greatest First Love premiered on April 9, 2011.
Season 2
2011 • 12 Episodes
Season 2 of Sekai Ichi Hatsukoi: The World's Greatest First Love premiered on October 8, 2011.