Born in 2004, Yamaguchi Kira is a rising actress, singer, and dancer under LDH. She was born in Nagasaki and attended EXPG Fukuoka. While she was in EXPG LAB, she was a member of the dance group KIZZY. Whilst participating in LDH's "The Girls Audition" in 2018 under the Actress Category, Takashi Miike confirmed that a successful applicant would receive a role in one of his works. She later won and became one of the main roles in Miike's "Secret x Warrior Phantomirage" in which she also became a member of the idol unit they released through the…