Ryusei is a mixed Japanese-Brazilian member of a Jpop group Ballistik Boyz (BBZ) from Exile Tribe, managed by LDH. He was selected to join the group after being one of the finalists from the 2017 Vocal Battle Audition 5 (Rap category). The group made their official debut on May 22, 2019. Prior to debut, he was a student in LDH's dance school EXPG in Omiya. His dancing talent led him to join the EXPG special dance project Crasher Kidz where they used to perform in the streets. (Fellow BBZ bandmates Riki and Ryuta were also part of this project). He's skilled in dancing, rapping and acrobatics. He's also fluent in Portuguese.