The 47-year-old, who is making a return to Ghana after almost 17 months away, was handed a one-year contract with an option for extension as he replaced Karim Zito who guided the club to avoid relegation last season.
The Accra-based side have been battling relegation in the past three seasons and Kenichi has been tasked to at least finish within the Top 10 position on the log.
Kenichi also revealed that he supports young players who have decided to leave the country to develop their skills abroad.
"I understand many young players from Ghana are moving abroad recently, and I support their decisions," Kenichi said.
"Young players who have chances to go abroad should go abroad. Opportunities are outside and you will open many doors. Also, you will gain a lot of life experiences once you move abroad," he added.
Kenichi initially managed Hearts of Oak before joining Nigerian Professional Football League side FC Ifeanyi Ubah in 2016 and Cambodian C-League side Tiger FC six months ago.