Today, June 2, the famous music group "Biology Stock", which has created countless classic anime divine songs, announced a major personnel change, guitarist Hotaru Yamashita announced that he will quit the group this summer, and will also quit the entertainment industry to focus on creative activities, while the biology unit chief continues to create with the home of Seie Yoshioka and Yoshiki Mizuno.

Originally a three-person music group composed of lead singer Seie Yoshioka and guitarists Yoshiki Mizuno and Hotaru Yamashita, the Bio Unit Chief was first formed in February 1999, with a history of more than 20 years, and the Chief of the Bio Unit is best known to domestic fans because he has performed a number of famous anime theme songs, among which Aotori from "Naruto" is known as a timeless divine comedy.
Although guitarist Hotaru Yamashita will inevitably retire from the group due to various reasons, core lead singers Seieyoshi Yoshioka and Yoshiki Mizuno firmly state that they will never give up this career that has almost accompanied their lives, and will continue the journey of "Biological Unit Chief".
Fans posted precious photos that have been treasured for many years to commemorate:
Yamashita Hotaru