In April 2016, suddenly he appeared in the scene under the name of Core-Boy with skillful freestyle. He attracted many people with street performances and MC BATTLE etc.


In the following year, He participated in "High Scool RAP" that has produced a lot of stars so far. He finished second in the championship. As the youngest player, he gained a lot of attention. Then, 12th tournament was held in "Makuhari Messe" in August of the same year. He won the victory there. After that, he was also appointed as the youngest personality of Japan 's first Hip-Hop specialized radio station "WREP" where Zeebra serves as the director. And he has come under the spotlight. However, after that, he disappeared from the scene without putting out any works at all, and kept silent for a long time to solidify the direction of his own.

In August 2018, he broke the long silence, and renamed his own artist name from Core-Boy to Novel Core. He participated in SKY-HI 's MIXTAPE "FREE TOKYO" which drew attention. And in November 2018, He signed contract with Hip-Hop Label "GRAND MASTER" managed by Zeebra who has produced T-Pablow, YZERR, OZROSAURUS etc. And 1st Single "Metafiction" was released.