Lisa Hoshino operates as an FBI explosive ordnance disposal (EOD) specialist dispatched to assist Tokyo police with a terrorist investigation. The case targets the serial bomber Benten, who focuses attacks on Shinatora Corporation buildings. Her EOD and counter-terrorism expertise proves essential to the investigation. She carries a SIG-Sauer P226 as her duty sidearm during the operation. Partnered with local officer Ryotsu, their working relationship begins with friction and mutual distrust. As the investigation advances, the necessity of stopping Benten forces them to overcome their differences, leading to cooperation. Flashbacks depict her childhood, showing her playing with toy pistols. These scenes provide context for her early exposure to firearms. Her role remains focused on the operational demands of the Benten investigation.