An image from Maruyama, the Middle Schooler, one of the productions that also features Kenji Endo.
Kenji Endo
January 13, 1947 — Hitachinaka City, Ibaraki Prefecture, Japan
Kenji Endō (遠藤 賢司, Endō Kenji, January 13, 1947-October 25, 2017) was a singer-songwriter and musician born in Katsuta City, Ibaraki Prefecture (now Hitachinaka City). His nickname was Enken (エンケン).