Based on available information, Tsuchiya is a character appearing in two episodes of the 1997 OAV series "Slight Fever Syndrome." She participates in intimate encounters within the narrative, including at least one confirmed girl-on-girl scene with the main character, Mizuki Yuzuriha. Details regarding Tsuchiya's background, personality traits, narrative role beyond these interactions, physical appearance, relationships with other characters, or character development across the series remain undocumented. The character is not noted to appear in other media such as movies, spin-offs, or additional seasons. Concrete information about Tsuchiya's story or characteristics beyond her confirmed participation in these encounters is absent from the sources.