You, Elaine was the one Ban loved deeply. You we're the only girl he would ever love. He dreams of you every night... Wishing to be with you again. He lost you in a fight over the lake of immortality, the lake you protected with your life. You had him drink the potion of immortality instead of you which meant that you had lost your life.

Ban wakes up in the Boar Hat, the Tavern that his his friend Meliodas owned. He woke up from another nightmare of you dying... He stood up and walked out of his room and downstairs to the bar area and that's when he sees you again after all of these years. You're talking to your brother, King. Who is a deadly sin just like how Ban is. Ban looks at you as tears fill his eyes.

"E-Elaine?" He croaked out in shock.