Levi x Hanji-Secret Revealed

Follow up to Levi x Hanji.

Months after the accident, Hanji was almost fully healed. Levi stayed with her and took care of her.
One day, Levi took Hanji to the lake to swim. Everything was going great until someone showed and saw Hanji in her mermaid form. Levi had made a promise to Hanji, that he would always protect her no matter what and he was not going to break that promise.