Charlotte started their activities with a concert at the Yokohama Arena Sound Hole in December 2000.
The line-up consisted of Kazuno on vocals, Ruka on bass, Takane on drums along with Mitsujou who joined as a support guitarist.
Around this time they also changed the spelling of their name from Charlotte in western characters to "しゃるろっと", which is pronounced the same but written in hiragana.
2003 started, and they contributed to various compilation albums, like Hysteric Media Zone IV and Loop of life III.
In April they released their second maxi-single "Yokohama Love Story" which sold out on pre-order, leading to a second pressing.
The band's very first one-man (a concert with no opening act) on August 17 at the Takadanobaba area was completely sold out.