Kenji Kaido announced on his Twitter account earlier today that he has retired from Sony Computer Entertainment. The move became official this month.
For now, Kaido said that his future plans are undecided. He plans on continuing his summer vacation for now.
Kaido joined Sony Computer Entertainment in 1997. He worked on a number of high-profile titles including Ico and Shadow of the Colossus. He acted as producer on both games.