Genshi frowned as he watched Mark leave the restaurant. Once Mark was gone, Genshi turned to Megumi, who was still drinking calmly without bothering to pay attention to anything else around her. Genshi had only brought Megumi to this dinner because he knew that Mark was far stronger than him, and Genshi didn't want a situation where he was subdued by Mark's power during the meeting.
Megumi being there gave Genshi an extra layer of confidence since he knew she could help him if things ever got more dangerous.