Orochi Yashiro/Story

The King of Fighters '97
It's not known when Yashiro realized he was a Heavenly King. At the end of the '97 tournament, Yashiro, Shermie, and Chris activate the Riot of the Blood within Iori Yagami and Leona Heidern as a part of their plan to resurrect Orochi. When both Leona and Iori are defeated, the New Faces Team reveal themselves as the Heavenly Kings and fight the player's team. When they are defeated, Yashiro and Shermie commit suicide in order to transfer their remaining energy into Chris, thus allowing Orochi to be resurrected back into the living world via possessing Chris' body, but Orochi itself would later be sealed away by the combined efforts of Iori, Kyo Kusanagi, and Chizuru Kagura.

The King of Fighters XIV
Due to Verse's actions during the events of The King of Fighters XIV, it is confirmed that Yashiro, along with Shermie and Chris have been brought back to life. Their memories along with their indignation for mankind have been revived as well, though not as intense this time.

The King of Fighters XV
In KOFXV, they get the shard described to be more powerful than Gaia itself, and sets in motion to end mankind all at once. However, they end up in a pyrrhic victory where they (and Goenitz) are the only living things remaining on the now-desolate Earth. Moreover, Orochi Yashiro is now doubting if what they did was even the right thing, as in his view, the Earth without mankind is boring.