A single moment can change the world for better or for worse.

A decision made from a desire to help someone precious to her, unknowing of the troubling hardships accepting great power could cause. Was she even worthy? That snake and wind goddess said so, that she was the perfect vessel for the unimaginable power that the Heir of Yatagarasu would be privy to. She thought she could wield this power and improve the lives of those close to her. It all seemed so far away now as she felt her mind slipping away further and further, the feeling of something burning barely registering in her mind.

Kanako and Suwako were wrong. She wasn't a suitable vessel at all.

At first it was just an increase of aggression, something managable with a couple of hugs from Orin and Satori-sama, but then she started to have stronger and stronger feeling regarding those that had cast Satori-sama down to then Hell out of fear and hatred. She loved her. She didn't think it was fair at all. These feelings had existed before she had obtained the power of the Yatagarasu, but for reasons unknown at the time they spiraled out of control.

Gensokyo, the Outside World. These two places had cast her beloved Satori-sama down, and she wouldn't forgive them for it.

And now everything burned. A desire to help had turned into a maniacal plan to burn Gensokyo and the Outside and turn it into Hell. ''How would they like to be cast down to hell?'' were her thoughts at the time. To her, they didn't deserve to life in the free open world with sunlight beaming down at them. They deserved nothing less than Hell.

These feelings were not truly her own. She felt them, sure, but not in such a capacity coupled with murderous intent.

It was a mistake. Something that could have been avoided. A shrine maiden in red and white had come down to put a stop to whatever she was doing and challenged her to Danmaku. With everything on the line, how could she have held back? She tried, she really did. Danmaku was non-lethal and wouldn't harm anyone. The shrine maiden had dodged and dodged and put her on the back foot. She was spend, tired and she couldn't keep up with her. A sudden burst of hatred grew within her and she exploded. She broke the rules of Danmaku and vaporized the shrine maiden. She was dead and Okuu was laughing. It felt great.

Her power was too much.

Everyone underground was dead, and Okuu couldn't stop herself from burning. These feelings were too much for the simple minded bird brain as she knelt over the corpse of her owner. She was unworthy of power. She was unworthy of living. She was worthless. Garbage. A murderer of friend and foe alike.

She ripped the third eye out of her chest.

Okuu cried as she held Satori-sama. She couldn't find Orin's corpse amidst the sea of blood and bodies. Later, a shrine maiden in white and green would visit the underground at the request of her family and ended up exterminating a bird of no great importance.

And Okuu had not stopped burning since.