Tsunoshima, this seemingly peaceful island, has been shrouded in mystery because of the existence of “Jukkakukan”.Jiang Nan, an ordinary detective, was involved in a bizarre case and found himself in an unexpected situation.

The origin of the incident was that Jiangnan learned from Osamu Shimada of the Prefectural Police Investigation Section 1 that a series of incredible events had occurred in Jukkakukan.He originally thought it was just an ordinary case, but when he witnessed the death of his comrades, he was deeply shocked by the seriousness of the situation.

Jiang Nan is an observant and thoughtful person, and he soon discovered the unusualness of this case.He began to wonder if there was a bigger secret hidden behind this?And is he himself involved in a larger conspiracy?

Jiangnan tried to distance himself from Osamu Shimada, fearing that he would become the next target.But just as he was about to leave Tsunoshima, the apartment landlord's words stopped him.The landlord said: There is a secret hidden in Shijiaokuan. Only by solving this secret can the real murderer be found.%

This sentence made Jiang Nan fall into deep thought.He realized that if he left like this, the mystery would never be solved.So, he decided to investigate the case again and find the secret hidden in Jujiakuan.

Jiangnan and Shimada Xiu began a series of investigations.They visited every corner of the Jukkaku Hall, looking for possible clues.After many days of hard work, they finally discovered an important piece of information: there was a secret room hidden in the design drawings of Jukkaku Pavilion.

The existence of this room excited Jiangnan and Shimada Osamu.They believe that this secret room holds the key to solving the entire mystery.So, they started looking for a way to enter the room.

After some twists and turns, they finally entered the secret room.Here, they discovered a surprising secret: It turned out that the owner of the Ten Gakuen Hall was a mad scientist who used the building to conduct a series of illegal experiments.And Jiangnan's comrades were brutally killed precisely because they accidentally discovered this secret.

Jiangnan and Osamu Shimada made this secret public, shocking everyone.They successfully solved the mystery of Jukkakukan and found the real murderer.And Jiangnan also won people's respect and praise because of his courage and wisdom.

After the incident, Jiangnan returned to his hometown.He knows that there are still many mysteries in this world waiting for him to solve.And he will continue his detective journey and fight for justice.