The staff officer of the German U-17 representatives. Q.P stands for "quality of perfection" and is just a nickname for this player, with his real name and birthplace unknown (at least to Japan's intel team). Despite not being a pro, he is extremely strong and is just as recognizable to the tennis community as Volk is. Inui and Renji describe him as snide and arrogant, but hardly careless. He views the likes of Atobe and Irie to be only a tenth of his skill level, and soundly beats them at the exhibition matches with little to no effort. He regularly gathers intel on rival teams and other teams of interest in order to make sure the German team is fully prepared to win their 10th consecutive world cup.