Attack on Titan: the Changing Future

This is my first time writing a novel. Please give me some advice from readers. Also, my books all have single heroines. If you don't like it, please leave a comment in the upper right corner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.