
Any spoilers? Is she able to do martial arts?

SPOILER:
Yes! Although her Qi center was broken, she received a new type of power (the one the Divine Physician gave her) and it basically allows her to control the Qi particles in the environment instead of her getting the Qi from her center.
She first lets her father and grandfather know by creating a Soundless Barrier bubble (which is basically more advanced that Sword Qi) so they were really excited and got carried away. Her dad became her teacher (in the past life story, he was supposed to teach the ML).

Did she even have cancer? I think she faked it?

Yup (*_*). How can that Tae-kyung just leave that killer . Like what was all these donations, investigation and struggles to find out the truth was for ??? Wtf . He just up and forgot all his purpose . And even went and said all hateful things to Seme . Like ???? Dude u r siding with your lovers moms killer and saying all that bullshit to him as well . I will say uke is so Hot and cold with seme all the time .
Is the ml the emperor? Will this make my blood boil?
No thankfully ml is red hair
Good good. Blessed~~