Mariko stood near the entrance to the Shrine biodome while talking with two Sisters. Her attention kept being drawn to the Kusari Navy Pilot who was brought to the station by a Junker. This irritated her to no end because who knows what kind of tracking devices he might be carrying in his clothing or under his skin. And even if he didn't, his presence was distracting her.
When none of the Sisters took action to remove the pilot, she took it on herself to do so. She casualy flicked her handfan open and used it to wave some cool air towards her, while elegantly placing one foot infront of the other. The geta made soft wooden clicked on the floor as the approached the terrified man, who didn't even notice her approach as fear had numbed his senses. When she passed behind him, she made a quick motion with a wrist as the base of his neck, just between the vertibre, to sever the spinal cord. His death was instant.
She used a piece of red silk to wipe the blood from the razor sharp edges of the unfolded handfan, before closing it and tucking it away in the folds of her obi. She gestured to the two Sisters to carry the body to the airlock.