Warning:

Gray catches Juvia cheating with his best friend Lyon. He became depressed and wouldn't even look at her again. What he doesn't know is the reason behind the affair.
Juvia: A victim, Lyon: a yandere, Gray: The affected.

Will Gray figure out the real reason Juvia cheated? Everyone has regrets. Everyone has scars. The one thing these two things have in common? Most of them are invisible, waiting to be revealed.