Years have past since Saya Otonashi has beat her twin sister Diva. Her life went on to be normal, then one day she had kids. One was a boy that took very much after Saya and the other a twin girl whom took more after her father Haji.
 
They grow up like normal kids, but the daughter whom ended up being named Moon, had a taste for blood, but this was not know. At the age of 16 Moon tried to attack her twin brother whom goes by the name of Heie, her assault had failed. She then ran and his from the world.
 
Years had passed and the chiropterans population had massively increased. The Red Shield again was out to stop the damage that the chiropterans and found out that behind it has Moon.
 
Now Moon has took after what her Aunt Diva started, her and her 3 Chevaliers. Ryan Antwan, a business man and new new owner of a company that goes by the name of Fallen Star Medical Inc.. a company that functions in medical advancements. Aaron Antwan, the little brother of Ryan Antwan, he is a famous writer. Then theres Blaze Yuko, a talented musician.
 
Now it is the job for Saya, Haji, Heie, and The Red Shield to hunt down Moon and stop her, before she completely follows him the footsteps of Diva.