That was her own sister!
It was not at all easy to make this decision.
Her sister's words seemed to make sense... if they were to kill off all the members of the former Hero Team, relying just on the two of them to gather all the Soul Fragments of Brother Jie Luo, and the various materials needed for his resurrection, it would indeed be nearly impossible to succeed.
But, if only one sister was left, then it might be possible.
This was a secret between the sisters, unknown to anyone else but them.
Born together, they inherently shared a connection, which not only allowed them to understand each other's thoughts but also display the strength of three or even four people during battles.
Moreover, this connection allowed them to absorb each other's Strength...
This absorption suffered no losses; it completely and solely appropriated the other person's strength.