In Boar Hat, Eleanor is revealed to be alive, thanks to Elizabeth’s magic. Ban and all the Sins arrive at the dinner with Ellein. She reproaches Ban when he, drunk, yells at Escanor.
Diane is the Sin of Envy with the Serpent symbol and a member of the Giants’ Clan. She recovers her lost memories and discovers that King is the man she truly loves, not Meliodas.
In an attempt to end the Holy War, Gowther used a forbidden spell to change memories. He erased Diane’s memories using Lost World, causing complications and feelings of betrayal.