In 1943 young Michuki dropped out of school a result of financial problems to cater for his fees. He travelled to Nairobi where he worked briefly in tailoring-related works where he fixed buttons and made button holes for the uniforms of the Pioneer Corp Unit, during the Second World War. By the time the war ended, Michuki had relocated to Nyeri where he worked in the same job near the old police station, earning 1 Kenya shilling per day. While in Nairobi, he also cooked for the close and distant relatives quarantined by the colonial government as a result suffering from a smallpox epidemic.