Sangatsu no Phantasia
History. The unit began its activities in 2015 when vocalist Mia uploaded a song titled "Day Break" on YouTube. The song was produced by the internet musician Scop, and quickly gained attention. During this time, their videos and songs featured illustrations by artist Natsu Asami. In 2016, the unit made its major debut with the release of the single , the title track of which was used as the ending theme to the anime television series "Kiznaiver". Their second single was released in December of the same year. Their third single was released in February 2017; the title  track was used as the ending theme to the anime television series "Interviews with Monster Girls". Their first album was released on March 8, 2017. The unit's fourth single, , was released on August 30, 2017; the title track was used as an ending theme to the anime television series "". Their fifth single, was released on March 7, 2018; "Kaze no Koe o Kikinagara" was used as the ending theme to the anime television series "Slow Start". Their sixth single was released on November 21, 2018; the title track was used as the opening theme to the anime television series  As Miss Beelzebub Likes. Their second album, was released on November 21, 2018. The unit released its third album on September 30, 2020. They released their seventh single on July 21, 2021; "101" was used as the opening theme to the anime television series "The Honor Student at Magic High School". In addition to producing music, the unit also writes novels. Some of their songs, such as , have received novelizations. In 2018, vocalist Mia began writing novels; since then, some of the unit's songs have been based on her novels.