One of the grindy achievements of SAO:FB, this achievement requires you to get 1st place of the Bounty Rankings. The target bounty is 9.7 million (which sounds a lot but you'll be surprised how fast you'll end up getting to it when you're in the groove). This will be done over the course of playing the game. What I did to achieve this is during my Extreme difficulty run:
1) Fast travel to a dungeon.
2) Clear it out.
3) Fast travel back to SBC Glocken (I usually go back to my home).
4) Repeat. (I also clear out my backpack so I don't end up overweight.)
Doing this netted me 100k per run, XP helping me level up my character and party, and some affinity for my friends in my party. However, results can vary if you do another clear, go out of dungeons to do other things, etc. As of writing this, I am not aware of a super fast way of getting bounties so this will be a grind. Also to note that the bounties on the rankings are fixed so you do not have to worry about it changing up on you and your bounty will carry over from previous playthroughs. Once you've passed the target go to the Lobby of the SBC Glocken and talk to the blonde ArFA-sys in the center of the Lobby to check your overall bounty. If you're bounty is past the number one spot, you'll get the following:
1) This achievement.
2) A message from your friends congratulating you on getting the number one spot.