As Hiro and his mother mourned the apparently 'heroic' death of husband, father and King, Ryuu Yamashita. Re Istuwari was planning something deeper and most unpredictable.
After recently discovering a first—and only—mistake of Tainted blood. Re Istuwari decided it would have to slowly weaken this single human so that he had no choice but to never unlock all the potential he possessed inside of him.
All Re Istuwari could do now was watch and see if this small mishap would clear itself out of the way or if it would have to take more…drastic measures to tame this young human.