Ice Prison Giant Stone MP+50 effects

[CullinB]

My 1st character can do practice MP50+ in front of the cold bed.
But my 2nd can't do this practice even after i saved Chu kuangsheng.
What should i have done ?
Rock Scissors Paper? ( i did this game in my 1st run but didn't in my 2nd)

[darkshintos]

You need something like 800+ Max Mp to learn about it from Chu, and 1k+ Max Mp to learn about the bed on your own.

[CullinB]

My 2nd character's MP was over 1400 at that time while my 1st was around 1100.
I find Chu's affinity was devoted in my 1st run
And at 2nd Chu's affinity was merely friendly ...

[CullinB]

I got learned MP+ method from him.
Get high Affinity and talk with several times is needed