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The second installment of "The Detective Kibukawa Ryosuke Case Tale" series!
The "Kairoukan" is a strange building surrounded by the sea on all sides.
Inside the building, which is sealed underwater, the curtain rises on a horrifying tragedy.

【Game System】

This is a mystery adventure game in which the player solves a series of difficult cases that occur in a fictional town called Marihama City in K Prefecture.

The player controls the main character in the scenario and solves the mystery by selecting commands in the conversation and deduction parts, and by gathering information and evidence that will provide clues to solving the case.

The story progresses by selecting commands, so even beginners can easily play the game.

【Story】

This case is set in "Kairoukan", a strange building in the middle of the sea, which was built by the former chairman of an architectural firm famous for its eccentricities.

The story begins when you are invited to an event to celebrate the inauguration of the building.

Seven invited guests are at the destination. The owner of the "Kairoukan", who never appears. And then...

A tragedy occurs in the mansion, which is closed underwater.

Who is the culprit? What is the motive? And what is the secret hidden in this building? The truth lies in the dark sea...

【Character】

◆Ryosuke Kibukawa (癸生川凌介)

The director of the Kibukawa Detective Agency and a detective himself.

However, he is quite an eccentric character, often causing trouble and confusion for those around him, though he doesn't seem to care about it at all.

It’s completely unclear what he's thinking, but he has led the resolution of numerous difficult cases up to now.

◆Izuna Sagishima (白鷺洲 伊綱)

A detective assistant at the Kibukawa Detective Agency.

Though she is an assistant, she is exceptionally capable, and could likely solve most cases on her own.

However, like her superior, she is unaware of her own quirks. She has a rather eccentric personality, sometimes clumsy, but also sharp enough to make one wonder if it's all part of a calculated act.

◆Masao Ikurumi (生王 正生)

A game scenario writer.

Recently, he has mostly been working on mobile app projects, including turning cases involving the Kibukawa Detective Agency into adventure games for public release.

Because of this "favor," he can never quite stand up to Kibukawa or Izuna, and is always flattered by them, which leads to him being made to work for free.

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This game may contain bloodshed, violence, and other content not suitable for all ages in the course of the story.