Cheaper 1

At the beginning of this story , I prefer to offer a simple introduction to all readers . 
I’m Cin. Cassiel , a student from Lopez High School . I live in a special city , the local people usually call it “ Chemistry System ” .
My father left me when I was five years old , so I live with my mom during these years . 
My school life is colorful . Now I’m standing inside the main teaching building of our school , at the second floor . Our classroom is on the south side of the building . I hide behind the back door in order to listen to music . As other normal high school , smart phones are forbidden in our school , either .