Both members were musically active when the two decided to write a song for a mutual friend. As a result, they formed Natural Crayon, and together they contemplated the direction for their music, with the intention of making a CD.

1998 Hitachi No Ki Arrangement Contest—Grand Prize Winner

In December of 1998, Natural Crayon entered Hitachi No Ki, a contest in search of a new arrangement for Hitachi’s existing corporate song and won grand prize for the pop music category. In January of 1999, for a period of three months, the newly arranged version performed by Natural Crayon received air time after the Hitachi-sponsored popular TBS show Fushigihakken. Computer graphics were later added to enhance Natural Crayon’s version of the corporate song. With the success of the song, Natural Crayon performed at various Hitachi-related events, including outdoor concerts.

1998 Tobikiri No Egao wins Best Prize

In the summer of 1998, at Boutique SPY's 15th Anniversary Present SPY MUSIC CONTEST held in Hamamatsu, Shizuoka-ken, Natural Crayon won best prize for their original song Tobikiri No Egao. This along with other prize-winning songs were later recorded and released in an appropriately as an Omnibus Album.

2002 Two songs written for victims of Creutzfeldt-Jakob disease

To support victims of Creutzfeldt-Jakob disease involved in a lawsuit and their legal representatives, Natural Crayon produces My Dear Friend and Chiisa Na Te.

2006 Their debut album, Natural Crayon, is released on February 1

Years of dedication and hard work have finally paid off.

2007 Live concert to support victims of Creutzfeldt-Jakob disease

In May of 2007, Natural Crayon sang the two songs they wrote at the five-year anniversary event to support victims of Creutzfeldt-Jakob disease.

2007 First live concert was held

On Saturday, December 29, Natural Crayon performed their much awaited first live concert to a packed house at club Yotsuya Tenmado Comfort near Takadanobaba Station. They played eight songs to a very enthusiastic crowd during their nearly one hour on stage.