Who composed the song “Ryuichi's Solo” by Gravitation?

The song “Ryuichi's Solo” by Gravitation was composed by Ryu-chan!.

Gravitation

Ryu-chan!

Imamo todokanu hikari no yukue
Azayaka mi mau omoi o egakou
michibiku kotoba wa koborete shimawanu youni
utsuru toki o osorenaide

todokanu hikari no yukue
Azayaka ni mau omoi o egakou
michibiku kotoba wa koborete shimawanu youni
utsuru toki o osorenaide

Who composed the song “Ryuichi's Solo” by Gravitation?: The song “Ryuichi's Solo” by Gravitation was composed by Ryu-chan!.