Michiru Morishita, a first-year Takafuji Private Academy student and recent Food Research Club recruit, navigates the school’s labyrinthine politics from the solitude of her dormitory, her family distant geographically and emotionally. With shoulder-length black hair framing red eyes and a petite 155 cm frame, her faintly catlike silhouette—accented by two upward-curving strands resembling ears—hints at quiet peculiarity. Words linger unspoken behind her guarded expression, emotions channeled instead through a harmonica gifted by Kana Ōgibashi, her missing best friend.

Enrolling to trace Kana’s disappearance, Michiru uncovers her comatose state—a casualty of clandestine student operations and sabotage. Her synesthetic perception of emotional auras guides this pursuit: melancholy tinged blue, joy radiating gold, danger deepening into amethyst or void-black. This ability, paired with fragmented memories of Kana’s mentorship, steers her through covert conflicts, harmonica melodies becoming both elegy and tool in reviving her friend.

While political schemes swirl around student council elections, Michiru’s influence emerges subtly—observing allies like Isara Aomi with feline scrutiny, her loyalty to Kana anchoring moral choices. Familial estrangement remains an unresolved chord, yet spin-off explorations like *Stray Little Cat* deepen her reticent resolve, framing her snack-fueled pauses (Yaoi-bou in hand) as quiet rebellions against chaos. Though catlike quirks and trauma linger in her periphery, her arc converges on piercing secrecy, not with grand speeches, but through steadfast trust in fragmented truths.