Everything Starts with Attack on Titan and Becomes Invincible

At wall maria "Damn it, why do you have the power of a giant that doesn't exist! And, I'm not called a sitting giant!!" Rainer "Liner, if you have the guts, don't sit on the soft bench!!" Chenxuan "Maybe, saving the world is better than destroying it? Right Chenxuan!" Allen "Me!*, Allen! You have changed your gender! Chenxuan "Get out of here! Chenxuan! " Allen "Don't forget to promise to marry me home! " Mikasa The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.