SPACE PLEASE. I've gotten a lot of questions about PaintTool SAI recently, so here's a tutorial about it and some links to SAI downloads. Official Systemax PaintTool SAI download: Here you can download a 31-day free trial of SAI and buy the program for about $70 USD. (Give or take around 5000 ¥) http://www.systemax.jp/en/sai/ Another SAI download location: Here you can only download a free Trial of SAI. http://sai.detstwo.com/sai/
