The reason why Turtle is called Turtle is because she is always slow, although Turtle herself defends herself by saying that she never procrastinates on serious matters. But her college roommate still gave her the nickname.
Shitou is called Shitou, not because of his character, but just because there is such a word in his name.
This is a realistic novel, and many of the stories in it are the real experiences of Turtle and Stone. I hope that this little novel can commemorate the sweet love between Turtle and Shitou. I hope they can stay like this and hold hands forever.