Episode Title:A Touching Reunion.Episode Description:Years before joining Seven Deadly Sins, Ban sought to become immortal by drinking the Fountain of Youth, a liquid sap produced by Sacred Tree, so he can live long enough for something good to happen. He ceases his attempts after learning the Foundation of Youth sustains the Fairy King's Forest, the fountain's sworn protector Elaine realizing him not to be like the other humans. In the present, Meliodas and his group arrive to a run-down town near the Necropolis where King is said to be buried with Ban meeting a pair of siblings. Ban is then attacked by he learns to be King, who accuses him of destroying the Fairy King's Forest while seeking to enter the Necropolis. The siblings reveal to Meliodas's group that the Necropolis is another world that only be entered when one shares a priceless memory with the dead. Ban's memory of Elaine gives the group passage with King following after them, a Holy Knight appearing in the town soon after.