"Congratulations, you've been assigned to the Special Observation Class."
On my first day as a transfer student, I discovered that my seat was surrounded by a group of "problem children":
To my left was a chuuni girl who claimed to be the reincarnation of a Demon Lord from another world.
To my right was a mysterious, frosty beauty who slept through every class.
In front of me sat a former child star who adopted a new "persona" every day.
And the task my homeroom teacher handed me was to use an observation journal to record each of their "progress toward becoming normal."
...But the real question is, who exactly is the "problem child" here?
[Main Story]
Class 2-S at Private Hoshizakura Academy: a special class no one knows about.
Twelve students, twelve kinds of "abnormality": chuuni syndrome, falling asleep in class, switching personas, a former delinquent, a quiet girl, perfectionism, a genius hacker, someone who claims to be from the future, a goth fortune-teller, hyperactivity, a reversed sleep schedule, and a cooking fanatic who makes food in class.
And I'm the only "normal" one: Kiryu Yuma, forcibly appointed as their observer.
I thought my job was just to take notes and submit reports.
But as the pages of my journal piled up, I discovered that behind everyone's "problem" lay a past they didn't want to talk about.
And those pasts seemed to be connected by an invisible thread.
The other end of that thread pointed to something that happened at this school three years ago.
[Ending]
This is an observation journal,
and also a record of "how abnormal people survive in a world that demands normality."
Open it. You'll discover that the world of the problem children
is warmer than the world of ordinary people