Levi miscalculated. The infamous Captain Levi of the Survey Corps, humanity's strongest soldier, miscalculated the effect of his action. Never he expected that one day he can look at someone and see himself as if its his mirror. He knows he trained her, passing things down. Not to this extent. It comes back to him. "Why do you have to be this stubborn?" "I got that from you, captain," she smirks. Levi miscalculated ... but he does not regret it. Not even a bit. She is the mirror, he desperately needs.

Ran Haitani goes back to the past exactly 10 years ago to save his and Rindou's ex-girlfriend.