I Heard I'm the Killer? [Mystery]

On the day our mock exam results came out, the police came to school and told me I had killed someone.

The teachers all denied it. They pulled up the footage of me taking the exam and pointed to my score. "She's got the highest math score in the whole school: 149. No one else could score that high."

The police showed us a video recording, too. That afternoon, on the same date and in the same month and year, I was standing on the balcony of an apartment building on the 13th floor, coldly pushing someone else off the edge.

After checking and rechecking, they believed I wasn't the killer, but warned me that someone who looked just like me was committing a string of murders. I had to stay on my guard.

I thought it had nothing to do with me. I was a bookish nerd who did nothing but study. I lived at school and only got to go home once every three weeks.

Then, one night, I saw a face exactly like mine, illuminated by a streetlamp across from the dormitory building.

[Reader's Guide]

1. There's almost no romance, so don't get your hopes up.

2. More details will be added later.

Theme: The key to life is finding yourself.