In December, there have been many days of snow.

Today, I, Mitsutaro, was reading my notebook back.

I'm really going to read it back this season, that's one book.

... It's not an unsolved case or anything.

However, the motive is not revealed beyond what has ended with the death of the suspect.

It was a cold day when it snowed like this, too.

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Eight years ago, on a certain day in December.

A few months after being assigned to the Department of Living Safety, when I finally got used to it, the incident happened.

I was keeping an inside book. I also have a request to be dispatched, and I will rush to the scene.

The scene of the incident was a park in a residential area.

Winter became less popular, but they were nevertheless freed for the kids to play with snow.

A corner of such a park was not snowy white, but red stained.

"... Yo?

"What, Koo, what's up?

The assistant manager, who was here with me, asked surprised.

I look familiar to a child who was falling in red snow.

My brother's son, Yo.

"That kid, he's my nephew!

"What?

"Excuse me, I'll see how it goes!

"Okay. I'll take care of this one."

Sweet for the assistant manager's words, I'll go check on Yo.

But even more tragic sights were spreading around Yoru.

"... snow noise on Akiho? What is this..."

Akiho had fallen from the entrance to a place where Yu had fallen invisible in a shadow.

Right next to it, a man still looking young is falling in blood.

And Snow Sound, who grabbed an even more red-dyed knife, was falling into a depression.

Snow Sound has just been woken up by a police officer.

"What the..., what's the situation, this?

"What, you are. No outsiders allowed in here!

"Excuse me. I'm Mitsutaro Uruchi, with the Life Safety Division. I came here with a request for backup..."

"Then it would be the organisation of the surrounding wild horses, wouldn't it? What are you doing at the crime scene?

"... the boy is my nephew. And the two girls who are falling, they're friends."

"... I see, then do you have contact information?... come here with that on."

"Okay."

Older detective, I guess.

I change into the shoes that the person gave me and I go inside the line of regulation.

Then the surroundings were more red stained than I imagined.

"First of all, this man, do you recognize him?

He points to a young man, and he checks with me.

But to the question, shake your head and tell him what you don't know.

"... right, so, what about those kids over there?

"That boy is my nephew and city builder. Falling by its side, the tall girl is Akiho Kaito. And finally, the girl who was falling into a depression is a sea rattan snow sound."

"Hmm. How old are you?

"Yu and Snow Sound are seven years old and in second grade. Akiho... I don't know if my birthday is coming, but I'm in fifth grade."

"Right. Do you have your parents' contact details?

"Yes, I will contact you as soon as possible"

"... no, let's get in touch here. Can you just give me your contact details?"

"Okay. … If you are in the middle of the day, call this number and you will be contacted"

"Okay. … so, the children's condition, Yukun is stabbed in the right arm and seriously wounded, Akiho is stabbed in multiple places and unconscious weight"

"... what about Snow Sound? She's pretty bloody dirty too..."

"... Except for her. Perhaps when he stabbed that man, he took his blood back."

... return blood?

What the hell was going on?

Where I'm confused, paramedics come.

"... I'm sorry for the confusion, but I need you to head to the hospital with the kids. I'll call your boss."

"... Yes, I understand"

I don't understand the situation, no, even if I'm not trying to, it'll only get in the way of the investigation.

I'm an adult and I ride in an ambulance with Yo.

... Yo, Akiho, Snow Sound, help me.

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I escorted her to the hospital that day, but as a result, it sucked.

On Yu's right hand, he remained handicapped and was diagnosed with no obstruction in his daily life, but unable to withstand intense exercise.

Akiho was... it was too late when he arrived at the hospital.

You said he had multiple stabs all over his body and bleeding from it was the cause?

Apparently most of the blood that was dyeing Yu's entire body was Akiho's blood.

Plus, Snow Sound... this one could be even worse in a way.

He was tested when he arrived at the hospital, but with few noticeable traumas.

Looks like he cut off his palm a little bit, but the procedure was taken immediately.

But her problem wasn't trauma.

First, post-traumatic stress disorder of the heart, plainly speaking, left trauma.

They can be terribly frightened when they see rain or snow.

... I wondered why the snow was raining anyway, but at the time of the incident, the park seemed to have gone from snow to out-of-season rain.

This one has improved considerably after a few years of treatment, but you think there are still things you can do in your dreams?

Also, after the incident, a police officer tried to interrogate Snow Sound, who woke up, but didn't remember anything at the time of the incident.

And he had also completely forgotten the presence of his sister, Akiho.

The doctor diagnosed a memory disorder coming from stress… this one is still not healing after eight years.

In the house - both urban and sea vine houses - it was enough to hide the traces of Akiho's presence because it did not strain the snow sound.

As a Kaito family, he bears the double hardship of being killed and having to hide further memories of his daughter.

... Finally, a young man who was down on the scene of the incident, but he was the culprit of it all.

Security cameras that were set up in the park, because that captured the entire crime.

Speaking only of conclusions, the case was found to be a man's passive offense.

The children, they didn't know anything about the men, and they couldn't find a contact between the men and the children.

And that's why the man was stabbed, but when Akiho was stabbed, he succeeded in taking the knife, and Snow Sound stabbed him with it.

Snow Sound seems to have stabbed him pretty deep, and this wound is causing the man to die, too.

On this matter, self-defense was admitted and Snow Sound was never found guilty.

It was just that the people who name the man's relatives sued him in civil... but on the contrary, he was sued about Yuya Akiho and disappeared.

... although I didn't do anything to allow such a halfway point and seized most of my property as compensation.

… that's an overview of the incident eight years ago, and the end of it.

After the incident, Snow Sounds would snap up nicely if she did... or become dependent, but the parents seem to be hungry to let them even get married.

As far as I'm concerned, I disagree with getting two people married like this who are close to co-dependence...

"Mr. Tochi, it's a case!

"Whoa, okay!

Four years early after his transfer to this department, juniors also turned to the side where they could be relied upon and struggled a lot more.

But I'm not in a position to cry, police officer.

I heard in the police car heading to the scene of the incident that there was a grand day, a passing incident.

That the suspect is already powerless by one of the victims.

... the victim helplessly disables the passage or something.

But why is there such a nasty heartache?

And when the police car arrived at the scene of the incident, we found out what caused the chest crash.

I don't care about a man being held up by a police officer.

The problem was, that man would have stabbed me, it was the boy.

"Make way, it's the police!!

"... hey, yo, hang on, yo!

The stabbing was all the more so.

He's bleeding heavily from his arms, legs, and then his right eye, and he's unconscious.

Right next door, there was Snow Sound.

... in a standing position, you got stabbed in the cover of Snow Sound.

I'll take first aid measures immediately and hand over Yo to the paramedics.

And another cop headed for Snow Sound...

Snow Sound slowly fell in, too.

"Oh, shit! Again!"

"Mr. Dubu?

"... nothing. Anyway, hurry up and respond to the wounded!

"Ha!"

... In the end, was I helpless again?