Shinichi Hase works as an assistant alongside Chiharu Kazama at their advertising agency, serving as her reliable and supportive colleague. He assists Chiharu with her project focused on time travel research and the development of the "Shakespeare" computer system, providing essential technical and logistical support within the workplace. Throughout the film "Toki no Tabibito -Time Stranger-", Hase maintains his role as a dependable assistant, centered entirely on his professional relationship with Chiharu. This character appears exclusively in this film.