Donten ni Warau Series by Karakarakemuri

Under the curse of Orochi, the great demon serpent reborn every 300 years, Japan has been shrouded in clouds for as long as anyone can remember... The era of the samurai is at an end, and carrying swords has been outlawed. To combat the rising crime rates, an inescapable prison was built in the middle of Lake Biwa... moreUnder the curse of Orochi, the great demon serpent reborn every 300 years, Japan has been shrouded in clouds for as long as anyone can remember... The era of the samurai is at an end, and carrying swords has been outlawed. To combat the rising crime rates, an inescapable prison was built in the middle of Lake Biwa. When brothers Tenka, Soramaru and Chutaro Kumo are hired to capture and transport offenders to their final lodgings in this prison, they unexpectedly find themselves faced with a greater destiny than any of them could have imagined. less

In the early Meiji era, against civil unrest and the end of the samurai way of life, Japan's crime rate skyrocketed. As prisons overflow, the government has no choice but to build a new, inescapable prison. This prison is Gokumonjo, located in the center of Lake Biwa, which means it relies on the three sons of the Kumo family to transport criminals to it... moreIn the early Meiji era, against civil unrest and the end of the samurai way of life, Japan's crime rate skyrocketed. As prisons overflow, the government has no choice but to build a new, inescapable prison. This prison is Gokumonjo, located in the center of Lake Biwa, which means it relies on the three sons of the Kumo family to transport criminals to it. But is Gokumonjo truly just a prison for petty criminals? A dreaded murderer intrudes on the Kumo family's peace and brings with him news of an ancient calamity: Orochi. As Soramaru realizes his elder brother Tenka has been hiding things from him, he begins to look to outside sources to help him become stronger. At the same time, still other outside forces begin to reach out to Tenka for his knowledge of this ancient evil. The race to find and control Orochi's vessel begins! less

In the early Meiji era, against civil unrest and the end of the samurai way of life, Japan's crime rate skyrocketed. As prisons overflow, the government has no choice but to build a new, inescapable prison. This prison is Gokumonjo, located in the center of Lake Biwa, which means it relies on the three sons of the Kumo family to transport criminals to it. But is Gokumonjo truly just a prison for petty criminals...?

Under the curse of Orochi, the great demon serpent reborn every 300 years, Japan has been shrouded in clouds for as long as anyone can remember... The era of the samurai is at an end, and carrying swords has been outlawed. To combat the rising crime rates, an inescapable prison was built in the middle of Lake Biwa... moreUnder the curse of Orochi, the great demon serpent reborn every 300 years, Japan has been shrouded in clouds for as long as anyone can remember... The era of the samurai is at an end, and carrying swords has been outlawed. To combat the rising crime rates, an inescapable prison was built in the middle of Lake Biwa. When brothers Tenka, Soramaru and Chutaro Kumo are hired to capture and transport offenders to their final lodgings in this prison, they unexpectedly find themselves faced with a greater destiny than any of them could have imagined. less