Chuukan Kanriroku Tonegawa is a spin-off of the Kaiji series, which follows Tonegawa, the right hand man of Kazutaka Hyoudou, the president of the Teiai Corporation and owner of numerous gambling tournaments. After Hyoudou is getting bored with his life, he orders Tonegawa to organize a so called "game of death" as it is his and his subordinate's job to keep the president in a good mood. Tonegawa must cooperate with his subordinates in order to make the president happy and what follows is a humorous story of his interactions with his subordinates and other characters of the Kaiji series. (Source: MAL News)

The web manga centers around Bojji, a deaf, powerless prince who cannot even wield a children's sword. As the firstborn son, he strives hard and dreams of becoming the world's greatest king. However, people mutter about him behind his back as "a good-for-nothing prince" and "no way he can be king." Bojji is able to make his first ever friend, "Kage" (shadow)—a literal shadow on the ground who somehow understands Bojji well. (Kage is a survivor of the Kage assassin clan that was all but wiped out. No longer a killer, Kage now makes ends meet by stealing.) The story follows Bojji's coming-of-age as he meets various people in his life, starting with his fateful encounter with Kage.

It has been 800 years since the battle gods "Idaten", who boast overwhelming speed and strength, contained the "demons" who led the world to ruin after a fierce battle. "That battle" is now just an old tale in a distant myth. While the "peaceful generation of the gods," who have never fought since they were born, are out of peace, someone has revived the demons from a long sleep! Bring armed forces, wisdom, politics, conspiracy, whatever you can use! No-rule & no-limit three-way battle royale is about to begin!!! (Source: MAL News)

Special episodes included in the Blu-ray and DVD boxes of Kuma Miko.