"...You monster, what exactly are you plotting?"
The girl before him was naturally the cause of Issei Ryuudou's distress.
Tanba Momoyo was a name that did not exist at all. This strange girl's real name was—
Shuten Douji.
At first, Issei Ryuudou simply refused to believe it.
Shuten Douji? What kind of joke was that?!
How could something as bizarre as a legend from the Heian period possibly appear in reality?
Yet after hearing Shuten Douji speak, while Issei Ryuudou still did not believe the demon's words, he had at least managed to calm down.
Because—
"The Holy Grail War is currently underway, you know."
"Issei, I know you do not care who gets the Grail, but since you exist, that does not mean other Masters will not set their sights on you, right?"
The girl Shuten Douji had transformed into wore a malicious smile as she leaned toward Issei Ryuudou.
"You are my Master, after all. As your Servant, I care very much about your safety."
Shuten Douji pressed herself against Issei Ryuudou.
A look of disgust appeared on Issei Ryuudou's face as he quickly stepped back several paces.
"You think I'd believe you?! You demon who used the lives of the people in the temple to threaten me!"
Issei Ryuudou looked as though he wanted to shout at her, but perhaps fearing he would draw others' attention, he deliberately lowered his voice.
Shuten Douji had used the people of Ryudou Temple to force him into becoming her Master.
A red mark, concealed from view, remained on the back of his hand. He did not know what it was for, but it clearly was not anything good.
"You have to believe me."
"Because I am your Servant."
Shuten Douji returned to her appearance as a young girl, raising her