Sword Art Online: Progressive Movie - Kuraki Yuuyami no Scherzo

More than a month into the death game Sword Art Online, Kirito and Asuna continue climbing Aincrad and reach the fifth floor, a region of ruined cities and mysterious catacombs. The greatest danger there does not come only from monsters. Relations between the two leading frontline guilds, the Dragon Knights Brigade and the Aincrad Liberation Squad, are rapidly deteriorating, and someone behind the scenes appears determined to turn rivalry into open conflict. Kirito and Asuna realize that a divided raiding force could kill more players than any floor boss. With only a handful of allies, they gamble on a dangerous plan to prevent disaster, while Asuna is also forced to face Mito again and the painful separation that began on the first floor.