Sena Wataru (瀬名航) or Wataru Sena is a VOCALOID producer, a composer at SOVA, arranger, and a vocal synth producer. He had never learned to play a musical instrument or formed a band before. His style of work is known for cute and gentle sound with elements of electronica, pop, and chiptune. He primarily uses VOCALOID banks Hatsune Miku.
He is also the composer of the campaign song for CBC Radio 70th Anniversary Campaign×Hatsune Miku, "Jidai o Koeta Asobiba de".
Currently, he is expanding his activities by providing songs for various fields such as idols, voice actors, anime, VTuber, and the idol group tipToe.
