 On 5 August 2014, the group launched an outstanding single, "Momotarō", on J-WAVE, for their fourth mini album, "Watashi wo Onigashima ni Tsuretette" (私を鬼が島に連れてって, "Take me to Onigashima Island"), which was released on 5 November 2014 in die-cut CD edition.In 2015, Wednesday Campanella released their first EP, "Triathlon".Unlike its previous works, all three songs on the EP were produced by a different producers