A Japanese that has no fame, rises to the NBA—. The protagonist, Takamido Hai, who's challenging for a spot in the NBA, as if a powerless Japanese would be good enough... However, he never knows when to give up, and soon, with his reckless mindset, climbs over walls called races, and leaves a mark on NBA history—. His dream is to become an NBA player, to become a world's top player, and to meet his missing father! He steps into the door of the NBA, Las Vegas' Summer League!
From Baka Dumb Aho Scans: Pairing: Furuya x Miyuki The winter vacation has started and many of the Seidou went to their respective homes/hometowns. Furuya stayed back for a day so that he can have some time alone with Miyuki. When he went to Miyuki's room, he found him cleaning so offered some help. Then, the two talked about why Furuya hasn't gone back home yet.
It was published in *Morning* 40/1990 issue, and was recorded in "Boushi Otoko wa Nemurenai" (Kodansha). It was later reprinted in "50,000 Bushi" (Enterbrain). [Wikipedia] Contents of Enterbrain ed. (the chapters has more subtitles): 1) 50,000 Bushi 2) Nippon Soul 3) Happy Lucky Tricky & Empty 4) You Don't Know What Gag is 5) The Good Old Days
https://ebookjapan.yahoo.co.jp/books/863433/A005542919/