Lissen Booth is a main character in the anime Sushi and Beyond, which is based on the travel and food writing of British journalist Michael Booth. She is portrayed as the wife of Michael Booth and the mother of their two young sons, Ansger and Emil. The family embarks on a hundred-day journey across Japan, during which Lissen accompanies her husband and children as they explore a wide variety of Japanese cuisine.

Her background is that of a British woman married to a food writer whose sudden fascination with Japanese cooking leads to an impulsive family trip. Within the story, Lissen functions as a stabilizing presence alongside her husband, sharing in the culinary adventures and the daily experiences of traveling with two small children. Her role is integral to the family dynamic, as the series focuses on the Booth family unit navigating unfamiliar foods, customs, and locations together.

Lissen's personality comes across as supportive and adaptable, given the spontaneous nature of the journey and the challenges that come with navigating a foreign country with young kids. Her motivations are closely tied to her family; she participates in the trip and engages with the various foods and cultural experiences, contributing to the shared adventure. Her key relationships are with her husband Michael, whose enthusiasm for Japanese cuisine drives the trip, and with her sons Ansger and Emil, whose reactions and experiences are a central part of the narrative. The anime does not depict significant personal development or notable special abilities for Lissen; instead, her characterization remains consistent as a devoted wife and mother who is an active participant in her family's gastronomic exploration of Japan.