She can control time on a per object/person basis, so she can stop everything other than her self and the things needed to prepare tea. (Source)HOW DO YOU HEAT UP THE WATER IF THE TIME IS STOPPED
What about her body aging? I mean she moved so her body must have grown grow.She can control time on a per object/person basis, so she can stop everything other than her self and the things needed to prepare tea. (Source)