 All Japanese adult videos are censored by applying a mosaic over the genital areas but in late 2004, S1 was the first company to replace the old analog mosaics with a new thinner digital mosaic they named .In celebration of its 5th anniversary, S1 organized a special puroresu event with All Japan Pro Wrestling, which was held on January 22, 2010 at Korakuen Hall.The main bout of the event, named the "Akiho Yoshizawa Cup" after the popular idol of the studio, featured several prominent wrestlers such as Keiji Mutoh, Masakatsu Funaki, TARU, and Ryota Hama.