As the vocalist for universe, haru's overwhelming singing voice dazzled the crowd at the Lotte x Sony Music's "Uta no Aru Gum Project" competition, beating out five thousand other people to win the grand prize. The single "Haruiro" (the song in the commercial for Lotte Ghana milk chocolate) was their major debut. Their second single "echoes" was used as the theme song for the Tokyo television anime "BLEACH". haru was the first Japanese artist to ever release an official cover of U2's "Vertigo", and he has been expanding his overseas performances by appearing two years in a row at Anime Weekend Atlanta, as well as giving a show in front of 3,000 people at Berlin's AniMaCo.
He has also garnered attention as the singer for the song used for MONSTER SUMMER!! Zettai Hansha Shugihen (Monster Strike (Monster) TV commercial).
During the summer of 2017, haru embarked on his first European tour as a soloist, performing a total of six shows in four countries, including Germany, France, Netherlands, and Belgium. In 2018, he returned to Europe twice more. The first time on tour visiting France, Belgium, and Italy where he attended Comicon and again in June 2018 to attend Magnificon in Poland.