サファイア

A royal family daughter who is curious about cosplay culture and is a priestess selected by the goddess.
She is a girl who believes that it is her destiny to give birth to a child of the hero who is the apostle of the goddess.
From the moment she meets the hero, she is in a state of immediate fall and takes care of the hero who is not familiar with this world.
She puts her life into spreading the AKIBA culture of the main character and builds her huge fortune by spreading fashion to her aristocrats,
She's just worried that she doesn't have enough money to be a nerd

"You are my destined person! I will be pregnant soon, so please leave it to me."