Tzuyu-San Can't communicate

Introduction

Changing schools was something Sana was used to since her mom's job included moving from city to city, sometimes even countries.
But that was all over now.
Her mother gave up on that old job so Sana could focus on her academic work and not stress the girl out by moving almost every year, so now they were permanently living in Tokyo and Sana enrolled in a private school to finish her last two years of high school, and this was something she was excited about. Every new city and school to Sana meant a new opportunity and a way to make friends, which she wasn't the best at but she always managed to make at least one everywhere she went , so it wasn't an issue.
But what if this time it's not her that needs to make friends?