Castle Dusk

Mugenjo, also known as Castle Dusk is the castle which appears in Naruto: Ultimate Ninja Heroes 2: The Phantom Fortress.

Background
The Castle Dusk was led by Princess Kasumi. But it was attack and destroyed by "Konoha", killing almost everyone except the princess.

Plot
Naruto, Shikamaru and Sakura, were from a mission. The sky suddenly became dark, so they rushed to the Hokage. Tsunade explains that Mugenjo was like summoned and disappears like mist.