Voice or NoiseVoice or Noise.

Voice or Noise (Japanese: ボイス・オア・ノイズ, Hepburn: Boisu oa Noizu) is a yaoi manga series by Yamimaru Enjin, author of the one-shot manga The Way To Heaven and illustrator of the novel Eat or Be Eaten. It was serialized in the magazine Chara by Tokuma Shoten from 2003 to 2015 and collected into six volumes. The story focuses on the relationship between a junior high school student, Shinichiro, and a college professor, Narusawa, both of whom have the ability to speak to animals.