Mozuku is a participant in the Cloudy Beach death game, introduced in the film Shiboyugi: Playing Death Games to Put Food on the Table 44: Cloudy Beach. She is described as the least experienced among the players, and although she appears unremarkable at first glance, there are indications that she is concealing something significant. Her physical appearance is youthful; she resembles a middle-schooler but is actually college-aged. She has short black hair styled into pigtails with red bows, and green eyes. Her background includes having dropped out of an electrical engineering program during her second year of college. The name Mozuku means sea cloud in Japanese and is also the common name for a type of edible seaweed. As a supporting character in the film, her role centers on navigating the deadly game alongside the other participants, though deeper motivations, relationships, character development, and distinct abilities are not elaborated upon in the available material.