Noelle settles into life at the prestigious Takamine College following her unexpected transfer. Her stepbrother Shuuichi takes a growing interest in her daily observations of campus life, particularly details about certain students such as the reserved Haruko, the capable Shirone, and the striking Elena. Through their conversations, she learns more about his determination to uncover the truth behind his mother's death. As these exchanges continue, Noelle senses the weight of his carefully laid plans drawing her further in.