Thread:Su712/@comment-31479589-20171227170905/@comment-31479589-20180104030656

Well, the AI has been revamped since chapter 3 update. They may become more careful and will actually try to block your hits. But there's also times when they become very aggressive and corners you to wall and then proceeds to beat you out without giving any chance to wall jump or turn around :(

Alright then. The trick is to get Dan 5 with 2 win streaks. It is not guarranted, but the chance is better compared to the usual pathetic chance. There are lots of vids explaining this on Youtube already, you can check them out if you're interested.
 * 1) You are at Dan 4 and 3 fights away from getting Dan 5.
 * 2) Your chest slots are full.
 * 3) Win two Duel fights.
 * 4) Open a chest for an empty slot.
 * 5) Win a Duel fight. You will get Dan 5, and may get the Legendary chest.
 * 6) If you want to try again, lose intentionally by entering the fight naked until you return to Dan 4. Repeat.

I don't know whether this work for lower Dan, but my friend confirmed that this work for Dan 6 too. But... good luck trying to get Dan 6 :p