I, Den-O, Contract Urban Legend

In the previous section, I was bound by a system that called itself the Kamen Rider System.
[Please introduce yourself first. This system will give you the best transformation props that are compatible with you according to your personality and thoughts. ]
"I, Ueya Inoue, have a dream, which is to become a benevolent and kind king."
[I understand. I will send you the pass of the Electric King now. ]
? ? ?
[Warm reminder, in order to activate the ability of the belt, please find the Demon God and sign a contract by yourself. ]
"Huh?"
...
The boy looked at the high school girl who crawled out of the TV in silence.
"Interesting, is there an urban legend in this world?"
Looking at the black pass in his hand, a bold idea came to his mind.
"Sadako, right? I need you."
"Hey hey hey?"
This is a story about a boy conquering an urban legend, making her shy, and signing a contract.