In the winter of three years ago, the first locked room mu*der in Japanese history was committed.... more>>

All of the evidence pointed to the defendant. It was certain they were guilty. And yet, they were found innocent and released. Why? Because the crime scene was a perfect locked room no one from the police or the prosecutor's office could solve.

"Since the room was locked, it was impossible for the defendant to have committed the mu*der. It's no different than if they had a perfect alibi." That was the argument of the defense, and that was the argument the judge sided with.

The ruling sent a ripple throughout Japanese society. No matter how suspicious you were or how much evidence you left behind, as long as you managed to create a locked room that no one could solve, you were immune from prosecution. With the common anti-mystery fiction talking point "there's no reason anyone would ever actually commit a locked room mu*der" completely overturned, the rate of locked room mu*ders in Japan skyrocketed.

When the police proved unable to deal with the surge of locked room crime, the Ministry of Justice published an official categorization of all known locked room tricks as an investigative aid. When that proved insufficient, Division Zero of the Tokyo Metropolitan Police Department, a police division dedicated solely to solving locked rooms, was created. When that still proved insufficient, locked room detectives, private investigators specializing in locked rooms, were officially licensed by the state and authorized to participate in police investigations. Calling a locked room appraiser, someone specializing in searching buildings for secret passages, is now a common first step in criminal investigations.

On the other side of the spectrum, locked room agents, assassins and crime planners specializing in locked room mu*ders, have become some of the most notorious criminals in Japanese history, and even a cult worshiping the scenes of locked rooms as a way to purify the souls of the deceased has made rapid inroads into Japan.

The protagonist, Kasumi Kuzushiro, is an introverted, somewhat cynical high school student who loves mysteries. Kasumi often finds himself dragged along on bizarre journeys by his flighty childhood friend, Yozuki Asahina. Due to their staggeringly bad luck, these trips often leave them in the wrong place at the wrong time to be caught up in locked room mysteries. Fortunately, another of Kasumi's childhood friends, Shitsuri Mitsumura, is the greatest locked room expert in the world, and can always discover the truth.

Hm? How did a high school girl become the greatest locked room expert in the world?

It's simple.

She's...

Volume 1 was the grand prize winner of the 2022 This Mystery Is Amazing! awards. <<less

Sozai Shuu, a working adult with a slightly weird habit of loving to collect raw materials, was transferred to another world by God after losing his life.... more>>

In order to live leisurely, Shuu wished for 『a power to live a carefree life collecting raw materials in another world.』His wish was successfully granted however, his magic power is strangely enormous, and his skill is really convenient? Seems like God misunderstood that he wanted to harvest materials from monsters leisurely so the power he gave Shuu was so incredible….

Nevertheless, Shuu does not take it to mind and freely uses his unique skill 【Detect】 in another world to search for materials, harvest them, eat them, make money off of them and lives a carefree life collecting materials. <<less

The protagonist, Inaka Yuuji, was run over by a truck because his awareness was dulled from overworking.... more>>

“Ahー, with this I don’t have to work so much anymore. I want to spend my next life leisurely……” was the wish Yuuji blurted out. He met God and it was decided that he will be reincarnated in the countryside of the otherworld. He became Alfred Slowlet, 2nd son of a countryside noble. Will he be able to enjoy and leisurely spend his slow life in the countryside? <<less

A nameless mercenary who died on the battlefield opens his eyes and finds himself wrapped in light brown fur!!... more>>

“Wa, wafi? Kuuaoon!?” Wh-what? I can’t speak!?

Reincarnated as a “Kobold”, a humanoid, dog-type beast, he challenges this absurdity head-on and leads the weakest dog race with a 10-year life expectancy, to climb the ladder of evolution, one day at a time!!

And, as he aims to grow from the weakest to the strongest, there is also a chance for him to evolve and turn into a werewolf, or stay as a Kobold and do as he pleases, but he will stay fluffy for now. <<less

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.... more>>

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event. <<less

A very ordinary high school student in modern Japan, Kizaki Souma, was summoned to a different world by someone.... more>>

In that world that oppressed demi humans, Souma decides to fight against the human countries for the sake of saving the beastmen, who helped him, by using his knowledge from manga and games.

This is the story of a boy that becomes 「 Soma Kisaki, the Divine Son of Death and Destruction 」who is going to be called a slaughterer and the history’s worst destroyer in the future <<less

Katsuragi Hayato who was an ordinary student, met with a traffic accident on the way home after school and died.... more>>

Because of the woman he saved at the time, he was reincarnated into a new world by a Goddess calling herself the Reincarnation God.

The new world is the so-called sword and magic world, there are tons of strong demons, there is a Demon King, and it’s said that the neighbouring country is warring with various countries.

In order to survive in this world, he needs to get stronger, using the skill he received from the Goddess and he decides to live a life as 「Leivelt・Runwalker」

It’s a story about meeting various people and growing. <<less

“Nora Kranz, I can’t marry you. I’m breaking our engagement.”... more>>

An evening party where a multitude of people have assembled. A handsome gentleman with grayish brown hair accompanied by a beautiful lady called out to her.

Amidst the murmurs of the crowd speculating whether it was a case of a stolen love affair or a love triangle, Nora opened her mouth.

“I don’t remember getting engaged in the first place… Who are you?”

Just then, a gentleman with the same grayish brown hair approached them and asked Nora’s hand for engagement.

This is the story of a poor Baron’s daughter as she is strung along by a pair of twin noblemen. <<less

When he came to his senses, Hirasawa Kazuki, a normal university student, found himself in possession of the body of a game’s character.... more>>

Moreover, it was Harold Stokes, the story’s most hated character who was even given the title 『King of Tr*sh』by the players. Myriads of landmines were just waiting for him to step on them!

Will Harold be able to clear the survival route while avoiding the countless death flags in his way?! <<less