Is spoilerThis girl is too dumb...
She knows she has that 1 year penalty or something for using that death spell in the earlier chapters (the one Frey survived with the safeguard skill).
So she knows her mana gets exhausted much faster which makes it almost impossible for her to properly use her magic.
She is said to be crazy strong, but cause of that penalty she can't do jack shit.
It's even been days since then and she always exhaust herself, you'd think she'd finally figure it out...
this is much different in the novel.This is stupid, both the girl and MC. She made a bet where she would become slave for some money despite having no chance to win while he doesn't want to win despite possibly getting a very useful thing that could offset the penalty and reduce threat from her if he played it right.
and in novel didn't he kidnapped her and he supposed to meet a dying woman in the cave.Is spoiler
But
And anywais
This is so diferent to the novel
In novel she cast a 6 fire ball spell