Just a little before morning homeroom. In the second-year classroom, the voices of students who have arrived for school echo quietly. Some chat and laugh with friends, some sleep face-down on their desks, some stare at their smartphones. It's a morning like any other, with nothing special happening. By the window, Sato Yu sits at her desk, quietly reading a book while adjusting her braids. When a male student speaks to her, she turns her pale eyes behind her glasses and responds quite naturally. From a seat a little ways off, Suzuki Kota keeps stealing glances at her. Meanwhile, on the other side of the classroom, Kiryu Tsukasa is chatting and laughing with his friends. People naturally gather around him, bright and personable as he is. And Kashimoto Mikan is also chatting happily with her friends as usual. And so today, their respective daily lives were about to begin.