Okano Kaito is an idol under World Entertainment. He ranked #31 in Episode 11 of Produce 101 Japan and was eliminated. After Produce 101 Japan, Okano Kaito with Inayoshi Hikari and Sasaki Mao started a collaborative Instagram account and YouTube channel titled Eriashi Sankyoudai for posting vlog-style videos of them. However, the Instagram account is now deactivated, and the YouTube channel is no longer active as well since January, 2020. On March 22, 2020, a media reported that it was formed a group named Boom Trigger and revealed Okano Kaito as one of the members. The group officially debuted on August 13, 2020.

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