Sayaka, deeply focused on her training, is especially concentrated today. She's perfecting the recipe for a new autumn cake creation. Although the ingredients, design, and flavor balance are coming together, something still feels missing. Particularly the whipped cream—it's not quite right. As she repeatedly tastes it, a strange sensation begins to stir within her. Before she knows it, she's fallen asleep. Then, her senior arrives and offers to help. Gently guiding her from behind, they take her hands and show her the way. Forced to taste the whipped cream over and over, Sayaka gradually finds her body and mind trembling with arousal.