Rock in Japan Festival
In November 2016, Onitsuka released her first single under Victor Entertainment, "Good Bye My Love" as the lead single from her eighth studio album. Although the song only managed to peak at number thirty-five on the Oricon Weekly Singles chart, it became her best-selling single in the last seven year since "Kagerō". Onitsuka's eighth studio album, "Syndrome" was released on February 1, 2017. The album sold better than her label's expectation, making it sold out in the several CD stores. "Syndrome" peaked at number fifteen on the Oricon Weekly Albums chart and spent nine weeks there, selling more than 11,000 copies. To promote the album, Onitsuka embarked on the concert tour of the same title as the album from April 2017 to July 2017. In June 2017, Onitsuka released her first live album "Tiny Scream", which compiled from her performance at Breeze Tower, Osaka in June 2016, and Nakano Sun Plaza, Tokyo in November 2016. The album peaked at number twenty-two on the Oricon Weekly Albums chart and topped on the Onkyo High-resolution audio chart. In August 2017, Onitsuka performed at one of the biggest music festival in Japan, Rock in Japan Festival.