Second season of Souten no Ken: Regenesis.

Yusuke, an orphan, literally has Rouge, the amnesiac oldest daughter of the Underworld's deposed royal family, fall out of the sky into his lap. She is soon followed by her two younger sisters and also their family's enemies. Rouge must decide if she wants her memory to return, while Yusuke must deal with the upheavals in his life the Princesses have caused.

Nanako is a an inept apprentice nurse to the brilliant young Dr. Kouji. Now for some reason, Nanako is always being targeted by various elements which makes Nanako wonder if she has done anything wrong. But there are certain secrets to Nanako's past that only Dr. Kouji and his family know about.

Preparing a party for her anniversary with the King, when he failed to show up Chocola decided to run away from the castle.