Tsutomu Ishizuki (石月努, born in Ichinomiya on January 8, 1977) is a Japanese singer, musician and designer, best known as the lead singer and songwriter of rock band Fanatic Crisis from 1992 to 2005. Two years later, he started working as a designer. In 2012, he returned to music by starting a solo career and in 2019, Ishizuki and the two guitarists from Fanatic Crisis formed the sub-unit Fantastic Circus.
Source: “Tsutomu Ishizuki”, English Wikipedia (CC BY-SA 4.0), excerpt