Eris’s 10th birthday is fast approaching, and her grandfather has invited nobles from across the kingdom to a dance party to celebrate. There’s just one problem: Eris can’t dance, and she’s quickly losing patience with her lessons.

Rudy reaches his 10th birthday, and Eris and her family plan a surprise party for him. Meanwhile, the strange orb hovering over the city remains a mystery as powerful entities across the world begin to take note of it.

After setting out from Millishion, Rudeus, Eris, and Ruijerd board a ship back to the Central Continent. Meanwhile, Roxy arrives in Rikarisu, where she encounters some familiar faces.