While Elizabeth attempts to rescue their father, the two rooster brothers rejoin the battle with Hikari, the devil bent on destroying Keiji and Keisuke. Hikari has transformed into the ultimate expression of his evil power, and it appears nothing can stop him. Keiji's not giving up, but pushing himself past his limits is exactly what Hikari's sinister mother wants-to force Keiji into a corner and trigger his Righteous Egg. Keiji fights for justice, but is there a dark side to his new awakening?
