The world was trying to eliminate Meliodas, who became the new Demon King and became too powerful. Meliodas didn't tell anyone about the looming deadline. However, including the van who noticed it, each of the pretended not to notice. If you say it, it's going to become a reality. In peace, he worked lively at the Pig Hat Tei, but he courageously asked if he couldn't leave the important "master" as it was. And Elizabeth also made her decision without telling anyone.