When Zero heard what his brothers wanted him to do, he frowned and his lips pressed together in a thin line.
"Oh, come on, Zero," Akira said with the most winsome smile he could muster, "She is your sister. The youngest sister, too."
"I already have a sister and I don't need any more," Zero replied, non-plussed
Akira rolled his eyes and said with an exaggerated sigh, "Your blood-related sister. Your half-sister, of the same mother. You know very well what I mean."
Zero gave a slight snort, and looked away, only to meet the gaze of his Lily.
Looking at him with a slight frown of her own.
He turned away, not able to stand the expression on her face and she stepped into the direction he turned his face to.
He childishly turned the other way immediately but her step matched his turn again.
She then took a step forward and rubbed his arm, tilting her head while looking at him.
Zero groaned and sighed, closing his eyes, "Fine."