Kingfist Volume 2 Bugged

[SkywardKkalox]

I can't buy the quest item for the technique from Kiyeon, she just doesn't let me. 

 

 

 

The quest had dropped from BSH 6man, but I can't progress.

[SkywardKkalox]

Nvm, found what was wrong. I just didn't complete the full kingfist achievment, which I thought I had.

[Zeroman]

By full kingfist achievement, do you mean the zen bean part of the achievement? or just getting to 1250 achievement points for the achievement shop? 
I'm stuck at the same part :(

[MonkeyDRuffy]

You need to use this skill 10x on 3 different bosses.

 

To know which, press U, go to character and then skills, and then you can click on the "Secret Technique"-Achievement which shows you the boss names.

[Zeroman]

I just completed the other kingfist achievement just now, and I went back to the store to see if it was fixed, and I can confirm that it was fixed! ^^ 
Thank you so much for the help, as I was worried if i needed to hit 1250 achievement points to get the book rather than doing the achievement.

I hope others who get this problem read this thread, its great help!