Hikaru is a Japanese singer who was a member of the vocal group Kalafina. In November 2019, she launched her solo project under the name H-el-ical//, pronounced "he-ri-ka-ru" (ヘリカル). In April 2020, she release her first single Altern-ate- and it was used as the theme for the anime "Gleipnir". Her following work has been featured in other anime series such as Magatsu Wahrheit -Zuerst- (disclose), The Faraway Paladin (The Sacred Torch), and World's End Harem (JUST DO IT). Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.