Tình yêu giữa ca sĩ và anh nhà văn. The manga was published by Gentosha and was serialized on starting in 1996 and ended in 2002. The new chapters are being serialized in an online manga anthology. It is known as Gravitation EX or Gravitation Genzo. The manga has been licensed and is published in English by Tokyopop. The Gravitation novel was released in English by Tokyopop on March 7, 2006.