Born February 12, 1993, Rion Miyachi Pearl is a Japanese American born into a musical family on the Upper West Side of Manhattan, New York. Born to parents who are classical pianists, Miyachi began writing lyrics and other creative activities when she entered high school. Miyachi studied acoustic engineering at Temple University in Philadelphia.

He discovered hip-hop in high school, rapping with his friends during lunch time, and started producing BEAT songs after school. While attending Temple University in Philadelphia, he deepened his knowledge in the local hip hop community and grew significantly. As a child, he traveled to Japan and spent a lot of time learning the language, and after graduating from university, he began rhyming in Japanese (RAP).​

He released “WAKARIMASEN” in 2018 and quickly emerged in the Japanese hip-hop scene. Shortly after, they released notable singles such as “Messin” and “MAINICHI” featuring JAY PARK, and “Crazy Outside” featuring Thelma Aoyama. Achieving collaborations with legendary artists in the Japanese music world such as RADWIMPS, MISIA, m-flo, and ANARCHY. Their 2nd single “Famima Rap” reached number 1 on the Japanese viral hit rankings.

His YouTube channel “KONBINI CONFESSIONS” has 230,000 subscribers, and his humorous content shows off his multi-talented talents in addition to his music.

In May 2025, they performed at the Boiler Room held in Hong Kong, and their fan base has become more international year by year.Furthermore, NAS became the first Japanese artist to sign with the founder’s US hip-hop label Mass Appeal, and will be the source of this album’s release.

There are great expectations for MIYACHI’s future developments.