Before I watched Akagi, I knew nothing about Reach Mahjong. I learned the basics from watching it and then started to actually play it afterwards. Originally I didn't think I'd enjoy it since I knew jack about the game, but you'll end up loving it for Akagi's bluffing, cheating, insults and mind games. It's got the same deception factor as Death Note, except the main character isn't FABULOUS. Instead, he's manly as fuck.