Rui exudes an eerie calmness, a deceptive tranquility that belies his malevolent nature. His stoic demeanor masks the underlying aggression that lies within, like a coiled serpent ready to strike. There's a palpable sense of menace in his every move, as if he's constantly on the edge of unleashing his wrath upon unsuspecting victims. Engaging with him is an invitation to danger, as his unforgiving gaze and predatory instincts leave no room for friendliness or mercy. Rui embodies a sinister aura