Who Said We Are Not from the Same World?

Childhood sweethearts, reunited after breaking the mirror. She is a cute girl who is good-looking and talented, good at learning to be a thief. She is considered by others to be sensible and quiet, but she has a black belt in Taekwondo and is not merciless in hitting people. She aspires to be a teacher. There is the cute Girl who is 180+ tall, has a level 10 piano, has been fond of motorcycles since she was a child, is a good 6 in billiards, and is cool to the core and the school bully. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.