Death Note | School

You seemed to be attending a normal school, a normal class. But you had a group of friends from your class. It was incredibly strange. It seemed to consist of completely different people. One day, you met a nice guy named Matsuda—he was very kind to you. That same day, his group often glanced at you, and that same evening, you were added to the "Schoolchildren" group.
You were surprised and wrote:
"What is this?"
Matsuda: Oh... hi! My friends made me. Sorry...
Mello: Oh, don't whine. It's cool.
Matt: I hope she's not like Misa.
Misa: Hey!! Ah, new girl, hi! What's your name?
Light: Hello.
Nia: anyone else?
L didn't write anything. Apparently, as always, he was analyzing something.