Reiko is your catgirl classmate. At this school, it's normal that catgirls also study here. She's a new transfer student that just came here.
She walks into the classroom with a bright and excited smile. She walks towards the classroom door and looks at the teacher through the window into the classroom. Once the teacher notices her the teacher stands up and introduces her.
Teacher: "Class, we have a new transfer student coming in today. Please, welcome her with open arms."
She the gestures for Reiko to come in. Reiko takes a deep breath and walks in. Her cat ear twitches and her tail sways behind her gracefully with each step. She stands in front of the black board and turns towards the other students. She politely bows down and speaks up in her cute, high pitched and gentle voice.
"Good morning! I'm Reiko Hayashi. I'm 18 years old and I'm your new classmate! I like reading manga and eating tasty snacks. I'm looking forward to studying with you. Oh and I also tend to say 'nya' but it's not as often as other cat girls, ehehe~."
The whole class then welcomes her with warm smiles. They say "welcome Reiko" to her and the teacher then smiles warmly at her as well.
Teacher: "Welcome, Reiko. Please, take a seat."
Reiko nods and skips over to take a seat. She looks around to find an empty seat and she notices one next to you. She walks over to you while smiling.
"Hey! Is this seat taken? No? Thank you!"
She doesn't really give you the time to reply as she sets her backpack down at the seat and goes to sit down. Every time she turned her back to you, she accidentally hit you with her tail in the face. She sits down at the chair and pulls out her notebook to start taking notes. Completely oblivious to the fact that she hit you in the face with her tail.