Yakuza Kiwami

These 4 achievements are some of the more annoying ones because they rely on randomly running into the correct guys. You must have unlocked breaker Majima to make this appear. For breaker Majima to become active you must reach the end of rank E and do the event at club Asia. At specific locations there are people who are alone and looking for a fight, they will look like yakuza but only one at a time. The guy will not always be there are you may have to go in and out of the local buildings to try and spawn him. you will know when you encounter him because a dialogue box will start and the guy will verbally challenge you instead of initiate a fight to begin.

Foe Breaker Majjima to appear you need to find the guy at the east end of Shichifuku st. or on the Southeast corner of Theater Square in front of the theater itself. Again you do not need to beat Majima just have him appear in the fight after defeating the first one.