145 Ayase: How To Use
This story fellows "129 Ayase: From Aragaki To Oumae":https://taoyundao.blogspot.tw/2017/04/129-ayase-from-aragaki-to-oumae-about.html
And the "adult version" of Ayase comes from this series "Afternoon Talk":
https://taoyundao.blogspot.tw/2015/07/
Previous story:
https://taoyundao.blogspot.com/2018/05/142-ayase-disarmed-this-story-fellows.html
When Ayase is Oumae Ayase, she can't activate her power of blessed legs and faithful spirit such that she isn't useful; when Ayase is Aragaki Ayase, the Oumae family can't take use of Ayase at any rate since she is a extreme religious exorcist and will fight for her traditional Catholic beliefs. The Christian beliefs of the Oumae family are twisted and monstrous, they are surely enemies to Aragaki Ayase if she can know the truth of the Oumae family. It was really a problem for the Oumae family till they invented the way of taking use of Ayase. The way is "do not use Aragaki Ayase in a whole".
The Oumae enchanted on Ayase's body when she was Oumae Ayase, then let her go home and turn back to be Aragaki Ayase. Later, when Aragaki Ayase was sleeping, they activated the magic for separated Ayase's blessed legs from her body. The Oumae family installed a monstrous Oumae cross onto blessed legs as soon as possible for solidifying their stasus. An Oni mask once owned by Amakusa Shiro was set on the cross as the core of the entire system. The ultimate automatic weapon of the Oumae family was born, it was named as "the Punisher".
Mostly the Oumae family members are chased by Christian exorcists and battle priests, and the Punisher is very effective in fighting them. The blessed legs are filled with religious power, and the monstrous cross will extract the power and twist it. Finally the Oni mask which carries Amakusa Shiro's animosity will lead that power to attack those exorcists' beliefs.
The Punisher was sent to an allied witch for guarding her. The witch was attacked by exorcists and got wounded. She was trying to repair her body on her own and she couldn't protect herself in that moment since she had taken herself apart. If an exorcist has been hit by the Punisher's power, her/his faith will be twisted, then her/his religious power can't work well. In some extraordinary cases, a portion of their beliefs were even "Oumaelized" and turned to against themselves inside their hearts.
The Oumae family also tried to take use of Ayase's other parts. They made a snake-like lower half to substitute for Ayase's legs. That snake-like part came from a demigod caught by Oumae family, so it also could strengthen surreal power of Ayase's upper half. When Ayase was in such status, she would be called as "the Prayer".
Aragaki Ayase was well acquainted with many mighty exorcists. When she is in "the Prayer" configuration, she will project her knowledge about an exorcist out of her mind and embody it into the virtual image of parts of that exorcist. The embodiment is actually linked to that exorcist's body in the surreal way. So, Ayase can transmit spiritual power into the exorcist's body slightly by praying for her/him. The spiritual defense of the exorcist's body will not resist Ayase's power because it's Christian power to her/his body. Therefore, that power can be implanted into the mighty exorcist's body and station there. It's a curse which was disguised as a blessing.
Today, Ayase's power is sneaking into Mari's lower half. Mari is one of the strongest exorcists, and she is actually a lesbian. Mari denied her nature, but she couldn't entirely suppress her sexual desires from her lower half. So, this time Ayase's power is going to cause chaos between Mari's beliefs (upper body) and desires (lower body)...