Although "BraviSEAmo!" was not the first nighttime show performed at Tokyo DisneySea, initial planning for the show began in 2002, the year after the park opened. Concept development began when Oriental Land Company show producer Koichi Sasamoto and his staff contacted French event designer ECA2 and Yves Pépin to brainstorm ideas. Sasamoto had previously produced shows for Tokyo Disneyland, while Pépin and its company ECA2 was known for creating the Eiffel Tower Millennium Show and "Magical Sentosa" show for the Sentosa Musical Fountain in Singapore; he subsequently went on to design a similar water show, "Songs of the Sea", also for Sentosa. On the Walt Disney Creative Entertainment end, John Haupt served as the producer, while Thomas Tryon was the production manager. "BraviSEAmo!" was envisioned as being a summation of the entire Tokyo DisneySea park. After deciding on the elemental love story concept, Sasamoto's team went to France to work out the practical effects details. Bruno Corsini of Marseille, who previously worked on the 2004 Summer Olympics opening ceremony, served as the lighting designer, while French-based Barbizon Lighting supplied the majority of the lighting equipment. Troy Starr, also of Barbizon, was the systems integrator. Christophe Berthonneau of Groupe F Pyrotechnie designed the fireworks for the show and provided 40 flame-throwers that were integrated into the Prometeo design.