They were actually biological siblings.
Watching coldly from the sidelines, Xu Nan had to admit, somewhat ashamed, that their conversation and lines just now had led his thoughts astray.
It seemed the two had had some unpleasant history, leading to A Kai driving Helena out of the house. Yet now that things had come to this, A Kai surely did not feel no guilt.
It was clear that he still cared deeply about his younger sister and was trying to make amends.
But Helena's attitude was different.
She looked very calm, even as though her heart had already turned to ashes.
Xu Nan noticed that only when her gaze rested on that alchemical puppet did it reveal a trace of warm human feeling.
Faced with A Kai's pleas, she instead laughed softly.
"Do you remember when we were children? Back then, no matter what happened, you always tried to convince me that you were right."
"Most of the time, I didn't want to admit it, but because of your bad temper and the fact that you were always much stronger than me, I could only submit helplessly."
"After we grew up, you became much gentler toward me. Only after Vignea appeared did you rarely scold me."
"After that, we never saw each other again."
"Apart from vague childhood memories and this so-called blood relationship, what is left between us?"
Her voice was hoarse and low, as if she were recounting something that had nothing to do with her.
A Kai's eyes widened, as though he could hardly believe it.
"Don't look at me like that." Helena suddenly looked disgusted. "If you truly cared about me and my child, why had you never come looking for me all these years?"
"Just because you disapproved of my choice of marriage, you chose