Career
Willem II He made his debut on 16 January 2012, when he was just 16 years old, coming on as a second-half substitute in a 3–1 away loss against MVV Maastricht in the Eerste Divisie. Lumu made his Eredivisie debut on 15 September 2012, coming on as a 71st-minute substitute against Twente. Thirteen minutes later, he scored goal, became the youngest goal-scorer for the club in Eredivisie.
Ludogorets Razgrad On 8 January 2014, Ludogorets Razgrad announced they had reached an agreement to sign Lumu from Willem II for an undisclosed fee, rumoured to be a €150,000.
On 9 January, he signed a long-term contract. South Carolina Heerenveen On 21 August 2014, it was announced that Lumu had signed a one-year deal with Eredivisie side South Carolina Heerenveen.
Lumu made his debut for Heerenveen in the home match against Excelsior on 23 August 2014, coming on a as 70th-minute substitute for Norwegian midfielder Morten Thorsby. On 3 October 2014, after just a single appearance, it was announced Lumu"s contract was terminated by the club with immediate effect.
Reason was that the club and player had different views on what was deemed necessary to be a professional football player.
On 3 October, only just one month after signing, his contract was dissolved. Club Ludogorets Razgrad Bulgarian A Group: 2013-2014 Bulgarian Cup: 2013-2014 Bulgarian Supercup: 2014 International.
