She starts by saying "Hi guys," and clarifies that names are not being used in the video to preserve the other person's image. She believes she is the one being talked about in the image you sent.
She says she received nine or ten "scissor blows" inside the classroom.
She explains that she and the other person had a disagreement on Tuesday, not because of bullying she did, as she would never do that. The fight on Tuesday happened because the other girl interfered in a conversation she was having with a friend and started shouting confidential information she had trusted the friend with.
She then talks about the fight on Thursday, which is when she got the injuries. She says that after the break, she went back to her seat, but the other girl sat in a place that wasn't hers. She says this wasn't a problem because the school is public and there are no assigned seats.
She explains that the other girl kept provoking her, and when she tried to talk to the girl peacefully, asking her to move back slightly, the girl said, "I don't talk to people from the slums," and told her to get out, using a curse word.
She then shows screenshots of messages where the other girl is allegedly offending her to a mutual friend.
She recounts that the other girl pushed her and assaulted her, hitting her in the breasts. She says that as an impulsive reflex, she pushed the other girl and threw her bag at her to create distance, but didn't throw a chair as was being claimed.
She says the other girl then pulled her hair and punched her in the face. She admits she defended herself with a pair of scissors.
She states that the videos circulating online only show the fight after it had already started and don't show the other girl's initial aggressions. She says she didn't film anything because she didn't have her phone out.
She concludes by saying she isn't justifying her actions but is waiting for justice and for the police to access the full footage from the school cameras, which she believes will prove her story.