Pachislo Kizoku Gin

Ginya Otonashi is a college dropout who works part-time for a pachislo publishing company while aspiring to become a novelist. Told to find the best slotter in Japan, Ginya comes across the Slosseum, an underground pashislo organization where slotters compete against each other with hopes to dethrone the Ultimate King, Ryo Daiba. Ginya join the competition, and his furthered involvement in pachislo will help him find out more about himself & his past.

Super sadly this is the only one of its kind