In a chilly classroom, Shirakawa Maaya, the seasoned teacher, finds solace in her student, Shirakawa Rina, a budding beauty with a curious mind. As the snow falls outside, their shared love for poetry ignites an unspoken spark. Maaya's hands tremble as she guides Rina's through the rhythm of a haiku, their fingers brushing, leaving trails of heat. Rina, bold and eager, leans in, her breath warm on Maaya's lips. Their first kiss is a whisper, a promise of more, as the classroom heater hums softly in the background.