KONOSUBA -God's blessing on this wonderful world!- Legend of Crimson

Yunyun storms into the adventurer's guild to deliver bad news to Megumin: their Crimson Demon home village is about to be flattened by the army of the Demon King's general Sylvia, and the village elders want the two of them home to defend it. Kazuma and the rest of the gang come along to mooch off Megumin's parents and turn out to be the heaviest hitters anyone in the village has, mostly by accident. The film expands the supporting cast — Megumin's family, the Crimson Demon's tradition of giving every child a chuunibyou name — and ends on a setup the series keeps paying off.