In 2008, he enrolled in EXPG STUDIO at the age of 9. He gained experience as a backup dancer of J SOUL BROTHERS III and other artists.
"FANTASTICS" was formed on December 29, 2016.
From February to April of 2017, the group held "Musha Shugyo" where they toured around Japan by bus. 50 shows held at 18 venues in 14 cities drew more than 30,000 viewers, setting a new record.
Two vocalists who won the audition with about 30,000 participants held from May to December of 2017 joined the group and the new "FANTASTICS" was born.
From April to June of 2018, "Musha Shugyo FANTASTIC 9" was held as a preparation for the group's official debut. Even though it was before their debut, they presented 78 shows at 33 venues across Japan and drew about 75,000 viewers.
On December 5, 2018, the group debuted with the song "OVER DRIVE".

He has made regular appearances in the corner of KRY Radio "Takamatsu Ayaka no Koisuru☆Ongaku" for about 3 years.

As an actor, he appeared in the movie "HiGH & LOW THE WORST X", MBS DORAMA TOKKU "Yakuza Lover" and TV Asahi "What's Wrong with Being Wily?" Azato Ren Dora 6. He was also selected as one of the lead cast members in MBS DORAMA SHOWER "Candy Color Paradox" which started airing in December 2022.

Keito Kimura × KRY project "10kei Channel" was launched in April 2023.
A YouTube channel named after the project opened and it started to be broadcast on terrestrial television.
In October of the same year, he played his first lead role in the stage play "BREAK FREE STARS". And he will play a lead role alone for the first time in the drama "Sacchan, Boku wa." which will start airing in June 2024. He is currently expanding the scope of his activities.

He is active as a member of a new unit "EXILE B HAPPY" that was formed by LDH JAPAN's kids entertainment "KIDS B HAPPY Project" of which EXILE TETSUYA served as an ambassador and that mainly consists of EXILE TRIBE members.