"I can't accept... Obviously knocked down the monster, but was punished behind closed doors for violating the order to reflect on it. What a thing..." In a classroom of a high school, a student was dressed in school uniform with black hair. And the young man with green eyes was sitting by the window, looking melancholy.

His name is Hyakuya Yuichiro. Four years ago, his family was killed by another existence in this world-a vampire. After that, he began his own road of revenge.

Over the past four years, he has experienced a lot. He is now a second-class soldier with the power to kill the Four Horsemen of the Apocalypse, but for some reason, he has been unable to perform the task of killing vampires.

And just a while ago, he killed a Four Horsemen of the Apocalypse, but he was kept behind closed doors for violating orders. As a soldier, he was sent to this high school, a high school that was all ordinary people. It was the point that made him feel the most upset.

"I am a soldier who actually went to this high school, which is all ordinary people. What is this going to do?"

At this time, the teacher who was teaching on the podium noticed Hyakuya Yuichiro, and turned around and said, "Hey, Hyakuya Yuichiro, what are you talking about, you are still in class now."

In response to the teacher's reprimand, Hyakuya Yuichiro only glanced at him, then hummed his head to the side.

Upon seeing this, the teacher was a little upset: "Hey, what is your attitude? If you dare to fool the teacher, I will let you suspend school!"

Hearing this, Hyakuya Yuichiro was actually excited and stood up. He slapped the table suddenly and said, "Eh? Can I suspend school? Really? Then please!"

After speaking, he bowed to the teacher very respectfully, and the teacher couldn't help it anymore.

"What a joke! You are just fooling the teacher like a fool!"

At this moment, Hyakuya Yuichiro’s back was suddenly tapped with a finger. Then, he turned his gaze behind him, and saw a person sitting behind him with purple curly hair, a petite figure, and a pair of awake people. Eye pupils, snow-white skin that can be broken by blowing, the very petite and exquisite girl looked at him with a positive expression.

"What, who are you?" Looking at the girl rubbing her back with a dazed expression, Hyakuya Yuichiro did not know such a person in his memory.

Without using her mouth to answer Hyakuya Yuichiro's question, the girl erected a book with two lines written on it.

"My name is Hiiragi Shinoya, a surveillance officer sent by the army."

"Huh?" Looking at the two lines on the book, Hyakuya Yuichiro looked puzzled.

Then, a girl named Hira Shinoya wrote some words on the notebook: "If you take an action that lacks coordination, I will report to the military department and extend your time for closed-door reflection."

Then, Hyakuya Yuichiro was anxious: "Huh?! What does this mean?!"

The teacher who had just turned around and hadn’t written a few words on the blackboard heard Hyakuya Yuichiro’s yelling, and suddenly turned around with an uncomfortable expression: “Hyakuya Yuichiro! If you stop the teacher from attending class like this if..."

Hyakuya Yuichiro: "Damn it!"

Teacher: "Damn it!"

At this time, Hira Shinoya spoke. She pointed to the words written on the notebook with a pen and said: "Coordination..."

Hearing that, although Hyakuya Yuichiro was very upset, he was helpless. If he continues like this, I am afraid that there will be no other results besides extending the time for closed-door reflection.

Therefore, he could only sit in his seat with a reluctant expression.

At this time, Hira Shinoya also reminded him: "By the way, closed-door introspection will not be released until you have not made friends. So please come on and make friends."

...

A few hours later, when the classroom was over, the students left one after another, but Hyakuya Yuichiro still sat on his seat with a look of sorrow.

Four years ago, all his family members were killed by vampires, only he escaped, and he also knew the man who changed his life-Ichinose Guren.

Ichinose Kuren belongs to the Japanese Imperial Ghost Army, with the rank of lieutenant colonel, Hyakuya Yuichiro has made it this far, and Ichinose Kuren has contributed.

However, whenever Hyakuya Yuichiro proposes to take part in a mission to kill a vampire, Ichinose Guren always rejects him for various reasons, and now he actually sent a Hira Shinoya to monitor him. And he also said that if you don’t make friends, you won’t be able to lift the closed-door reflection.

"Wait a minute, I also like ice cream the most. How about talking to others like this?" At this moment, Hira Shinoya walked up to him, because the classmate who had just walked out of the classroom said, "Let’s go eat ice cream. "That's why she said such a sentence to Hyakuya Yuichiro.

"What are you doing, it's too familiar." Hyakuya Yuichiro said while lying on the table looking at Hira Shinoya with a relaxed face.

"Lieutenant Colonel Honglian told me that when you were a child, because you saw your family members being killed by blood sucking, you became unable to have normal contact with others, because you were afraid of losing them again after you made friends, so you were afraid that you never did Classmates, friends, and lovers." Hashioya said, and every word she said entered Hyakuya Yuichiro's heart.

Then, Hyakuya Yuichiro got up from his seat and grabbed Hiira Shinoya's shoulders, his face full of discomfort: "You guy, don't talk about other people's affairs casually. Go and talk to Guren. The idiot said, let me join the vampire annihilation army earlier. I only have the strength to kill them now. Let me kill the vampires soon."

"I guess you would say that, so the lieutenant colonel asked me to give this to you." Hashioya said, she took out a folded piece of paper from her pocket and handed it to Hyakuya Yuichiro.

Upon seeing this, Hyakuya Yuichiro looked satisfied and turned out the paper: "What, Guren, he is very good."

Then he opened the note and began to read what was written on it.

"The army doesn’t need a virgin who can’t find friends and doesn’t have a lover. If you are not reconciled, you can quickly make friends and introduce them to me. Well, although this is completely impossible for you, Right? Yuu?"

After reading what was written in the note, Hyakuya Yuichiro instantly exploded his hair. He squeezed the paper into a ball and threw it to the ground with an angry look: "Asshole!"

After speaking, he picked up the schoolbag he had placed on the table and kept saying, "Whether it is that bastard, come and fool me."

Then he closed the door of the classroom forcefully outside the classroom, making a harsh noise.

After Hyakuya Yuichiro left, Hira Shinoya was the only one left in the classroom... No, there was one other person besides her.

After Hyakuya Yuichiro left, Hashioya stood there and looked at the direction of the door, while another person in the classroom also picked up his schoolbag at this time and wiped it by Hashioya's side.

Because the shoulder was wiped by the man, Hira Shinoya immediately looked at him.

After noticing Hashioya's gaze, the man walked to the door of the classroom and opened the door of the classroom that was originally closed by Hyakuya Yuichiro. He also turned his head and looked at Hashioya.

And at a certain moment, his originally indifferent eyes seemed to have turned into a pair of blood-red pupils inlaid with three black jade...