Sonobi started a new formation in August 2015 with the addition of vocalist Kanata. The band features visuals with a unique worldview and a wide range of songs with catchy phrases interspersed with a strong, poisonous impact. The music videos uploaded to YouTube have attracted a lot of attention, and "I wish I could die" has been viewed 380,000 times. The catchy melody and lyrics of "Fudori-hime" attracted a lot of attention, and even before the CD was distributed, the group received inquiries from karaoke and media outlets. In August of the same year, the newly formed band signed a contract with Euclid Agency, which includes Golden Bomber, Guild, and Anli Pollicino. On the 15th of the same month, they performed their first one-man show after Kanata joined at Higashi Koenji 20,000 Voltage. 2016 "Operation Spread the Infection 2016", a one-man show at Ikebukuro EDGE on January 31, was sold out. The following one-man show at Shibuya DESEO on March 30 was also sold out immediately. The song "Fudori-Hime" distributed by Dwango J.P. ranked No. 1 on the daily DL chart and No. 2 on the weekly (iPhone category).On April 13, they released their 1st single "Fudari Hime", their first distributed album after joining the office, which debuted at No.26 on the Oricon Weekly Chart; their Takadanobaba CLUB PHASE one-man shows on May 22 and August 14 were immediately sold out; their 2nd single "Graveyard The 2nd single "Graveyard de Loveme Junto O" released on September 14 debuted at No.31 on the Oricon Weekly Chart and No.1 on the Indies Chart. They held a two-part one-man show titled "Gurofes vol. 4" at Takadanobaba CLUBPHASE on October 30, and will be going on their first Tou-Mei-Han one-man tour starting with Nagoya ell. On January 4, 2017, they released their best 1st ALBUM "We are all dead. was released on January 4, 2017.It debuted at No. 24 on the Oricon Weekly Chart and No. 2 on the Indies Chart. With this album, the band has been touring 10 cities since February
