
Quick answer — Kazunori Nomiya voices Ryou Kutani in Hiiro no Kakera: The Tamayori Princess Saga 2, Renji Kagami in Gakuen Handsome.
Kazunori Nomiya voices Ryou Kutani (Hiiro no Kakera: The Tamayori Princess Saga 2), Renji Kagami (Gakuen Handsome).
Ryou Kutani is voiced in Japanese by Kazunori Nomiya.