A mermaid tail

Sofia

Sofia was sent into school 

Sofia: *thinking* there's so many humans here 

Then she sees a girl with dark red hair and purple eyes wearing a pair of purple glasses 

Girl: hey are you new here 

Sofia: yes miss

Girl: oh I'm Christal you can spare calling me ms until I become a teacher 

Sofia: I'm Sofia and this is my first time here

Christal: were you homeschooled 

Sofia: uh yes 

Christal: well welcome to Music high school 

And Sofia had a decent day at school and she saw a swimming pool and went to see it

Christal: you ok you look like you never seen a pool before 

Sofia: uh yes I'm fine 

Then they saw a girl 

Girl: well well looks like ms loner is touring a new girl 

Christal: can you just go away Shelly 😒

Shelly: oh why not I think the new girl could use a swim 

And she pushes Sofia into the pool and they see Sofia's legs turn into a purple mermaid tail and before Shelly could process what she saw Christal shoves her into the pool and pulls Sofia out of the water and she goes back to her human form and they leave and they went into a empty room to talk 

Christal: what was that

Sofia: what was what 

Christal: I don't know I just saw you having a tail 

Sofia: I'm a mermaid 

Christal: for how long 

Sofia: since my birth and this is my first time on land 

Christal: what are you doing 

Sofia: I came with my brother and his friends to find and save a princess but please don't let anyone know about this 

Christal: don't worry your secret is safe with me 

And the rest of the day went well until after school 

Sofia: you know Christal I kinda liked land school 

Christal: thanks it will be a shame when you go continue your mission 

Sofia: don't you have friends 

Christal: I'm just friends with a classmate named Wheels

Then Sofia bumps into a boy 

Sofia: sorry

Boy: here let me help you 

And they both immediately felt a special connection to each other 

Boy: I'm Chase and you are 

Sofia: *blushing* I'm Sofia *thinking* why am I blushing 

Chase: that's a pretty name 

Sofia: thank you 😊 

And later she was found by Moss

Moss: there you are did they hurt you we saw you get kidnapped 

Sofia: I'm fine 

Then they find the group and they went to a house belonging to Florian's uncle Breeze who let them stay with him for as long as they needed and he officially registered Sofia to school