Baste Dungeon

Baste Dungeon (ベテス監獄) is a large prison located 8 miles southwest of Dalmary Town; known for holding the notorious criminal Ban, of the Seven Deadly Sins.

Background
Five years before the beginning of the series, the Weird Fangs confronted Ban of the Seven Deadly Sins. The resulting battle ended in Ban's capture and imprisonment in Baste Dungeon, where they remained as the dungeon's four guardians.

Baste Dungeon Arc
After learning that two of the Seven Deadly Sins have arrived in Dalmary Town, one of which is critically injured, Friesia decides to launch a first strike in order to halt their advance.

Ban, overhearing from the guards that Meliodas is there, decides to escape. He is confronted by Jericho, an apprentice Holy Knight, who tries to kill him. Ban easily dodges all of Jericho's slashes, insulting her by suggesting she would make a talented hairdresser. Wondering how Ban was able to move so deftly with such severe wounds, Jericho is amazed to find that all Ban's wounds have healed, save for a scar on his neck. Ban explains that this scar is a "special case".