is a Japanese pop rock duo from Kanagawa Prefecture, Japan consisting of Yoshiki Mizuno and Kiyoe Yoshioka. The group started in February 1999 with Hotaka Yamashita and Yoshiki Mizuno, who had known each other since they were six years old, and was joined by vocalist Kiyoe Yoshioka in November of the same year. The group's name is a reference to , a group of children who are responsible for looking after plants and animals in Japanese elementary schools.
In 2006, the group released its first single on Sony Music Entertainment Japan's Epic Records label. Several of their albums have reached number one on the Oricon weekly rankings, and their songs have been featured on various media: from TV commercials, anime shows such as Naruto Shippuden, Japanese TV Dramas such as , live action movies such as , the 2012 Olympic broadcast theme song for NHK, and the set piece for a national junior high music competition.
Their official fan club is named
Mizuno has the most composed songs among them, while Yamashita ranks second. Yoshioka has contributed lyrics to a few songs, but Namida ga Kieru Nara is the only song on which the three of them have collaborated.
In June 2021, it was announced that Hotaka Yamashita was leaving the band which would continue as a duo.
History
Formation and trials, 1999-2003
In 1989, Mizuno and Yamashita met by chance while they were in the first grade; they were both put in charge of being , who are caretakers of the school's plants and animals. Yamashita later noted that he really wanted to be a "blackboard monitor". Yamashita and Mizuno formed their band on February 1, 1999, and began performing live on the street; not taking it too seriously, they named it "ikimono-gakari" after their shared experience in first grade. At first, they did covers of Masayoshi Yamazaki. On November 3, 1999, Yoshioka joined the band. In those days, Mizuno and Yamashita planned to make a group with a female lead vocalist, which would be an unusual sound for the street performances they were doing. Yoshioka was the younger sister of one of their classmates; she entered as the main singer and the band took on its present-day form. As they were then performing with three members, the band did a cover of Yuzu's single, .
In September 2000, they suspended the band to focus on college entrance examinations for Yamashita and Mizuno. By March 2003, Yoshioka recovered from a slump where she had almost thought of not singing anymore; she saw this as a second chance to grow as a person. Again, the band re-formed, but then, they were performing with the intent of supporting their increasing fame. As their style of music was moving more towards an acoustic focus, they planned to expand their scope to cover not only street performances but live house concerts as well. Moreover, they made a greater effort to compose more original music and rely less on covers.
Rise to fame, 2003-2008
In April 2003, the band resumed playing with a street show in front of the Hon-Atsugi Station on the Odakyū Odawara Line. In June, they did a one-band show at the Thunder Snake Atsugi live venue for the first time. A person who happened to be attending this performance ended up becoming their manager; this became the impetus for them to launch a major road tour. On August 25, they released their first indie album, Makoto ni Senetsu Nagara First Album wo Koshirae Mashita.... On March 26, 2005, the band held a show in the small hall at the Atsugi City Culture Building (Atsugishi Bunka Kaikan); this was the first time the band had ever done a single-band show in a hall.