The 20-year-old was playing for top Ghana Premier League side WA All Stars, who currently lead the league title race in that country with five rounds of matches to go.
But the Ghana youth international says the higher-profile South African league will open up more opportunities for him.
READ ALSO: Tinkler backs captain Manyama
“I use to watch the PSL on TV back in Ghana so I know about it, it’s very tough and I know I will have to do my best,” Adjei tells KickOff.com.
“There were a lot of teams interested in taking me but I decided to come to Cape Town City. In life there is no need to rush things, so this will be a good learning experience for me.
“Coming from Ghana to play in South Africa is just a step for me I hope. It is a step forward certainly, but I see my future in Europe. The PSL is a professional league.
“I’ve been here almost four weeks. I’ve settled in really well, I’m coping with the training and liking Cape Town so much. The players have been very friendly towards me.”
READ ALSO: Modiba excited by Bafana chance
The tall Adjei confirms that centre-back is where he will feature for the side this season when selected.
“I’m a centre-back, that’s my best position. I used to play as a holding midfielder but that was a long, long time ago,” he says.
City open their season with a league clash against Polokwane City on Tuesday, before they have a home clash against Kaizer Chiefs in the MTN8 on Friday.