On July 7, 2002, the main lyricist Mai Matsumuro left the group to pursue a solo career.
Instead of one, six new members won the audition, resulting in an eight-member (Dream) group with the debut single "Music is My Thing".
In August 2008, Yu Hasebe left the group to pursue a solo career, leaving Kana Tachibana behind as the only original member of dream.
In August 2010, Dream released their official major re-debut single, "My Way: Ulala" on the Rhythm Zone label.
Over 120,000 hopefuls auditioned in front of a panel of judges, notably including Kaori Mochida of the popular band, Every Little Thing.
The final winners of the competition were Mai Matsumuro, Kana Tachibana, and Yu Hasebe.
"My will" was the song that gave Dream newfound fame as it was the first ending theme to the popular anime Inuyasha.
Following the release of Process, Matsumuro, who wrote most of the group's lyrics, announced that she was to leave in pursuit of a solo career.
They were Risa Ai, Erie Abe, Aya Takamoto, Ami Nakashima, Shizuka Nishida, and Sayaka Yamamoto.
After a long period without much activity, Dream released 7th Anniversary Best (a best of album featuring songs from the group's debut as a three-member unit up till their latest single) and Greatest Live Hits (an album featuring recordings of their live performances) on January 1, 2007 (the group's 7th anniversary).
On June 27, 2007, Dream was "reborn" as the dance/chorus group DRM in an attempt to shed their image as idols.
On August 1, 2008, Yu Hasebe left DRM in pursuit of a solo career, leaving Kana Tachibana behind as the only member of the original Dream.
The new single was titled "Perfect Girls / To The Top" and was sold exclusively at a series of free shows Dream performed throughout Japan as well as on mu-mo (an online store).
To promote their comeback, Dream embarked on a nationwide tour of Japan, performing at free live appearances in numerous cities.
On March 1, 2010, Dream released their second single as a six-member group, titled "Breakout", another mu-mo exclusive.
[5] In 2011, the group became part of LDH's collaborative supergroup E-girls (which is the female counterpart of Exile) alongside Happiness and Flower.
[7] The book describes the turbulent history of the group, the number of difficulties they had to face, the twists and turns in their career and the firm bond the members have.