During a 20th anniversary interview, Yosuke Saito revealed that he wanted to be part of the FINAL FANTASY XI.
The producer of NieR revealed that although he would have liked to work on the game, the fact that he was an avid gamer would have negatively affected his work. Saito-san, along with other developers like Akihiko Matsui, was part of a guild of SQUARE ENIX and together they enjoyed making high-level raids. During the interview the two recall some moments like Saito’s experiences as a Tank of the group or when the DPS caused them frustration.
You can find the entire interview on the site “We are Vana Diel”, Opened by the software house to celebrate the twentieth anniversary of FINAL FANTASY XI.
Source: SQUARE ENIX Street Siliconera