This spin-off focuses on the various side-characters from the main manga.

The Battle of Tsushima displayed the pride of the samurai when a small army bravely stood against the Mongol Horde. And now the next stage of the invasion moves to Hakata, a key point in Kyushu. Will the Kamakura samurai's battle plan be affective against the fleet of Mongol warships that fill Hakata Bay?

Adonis, the third prince of the Klondike kingdom, the largest country on the continent, was troubled. He didn't had any idea about how to use his skill, which everyone in this world is born with, or how effective it really was. In the Klondike kingdom, it's common knowledge that those who cannot use their skills are considered incompetent. Moreover in this world where dragons are already gone and forgotten since a long time, his [Dragon King] skill it's also treated as a trash skill and labeled as incompetent by both the king and his brothers. As soon as he becomes an adult, he is banished to the frontier under the pretext of developing the territory. On that land that has nothing but withered earth and rocks, Adonis is forced to live with his few companions, however he meets there a beautiful red-haired woman called Kalessa, who claims to bea "Dragon Witch". And from her, Adonis learns the true worth of his [Dragon King] and how to use it. "With the power of [Dragon King], you can create or destroy nations as you wish." Thus, Adonis used the power of his skill [The Seven Dragons Summoning], as Kalessa taughs him to... Create an Oasis with the power of the water dragon... Create a fertile land to start agriculture thanks to the blessings of the earth dragon and wood dragon... Develop weapons and other stuff thanks to the resources of the golden dragon and the fire dragon... Using outside the norm methods, he develops the frontier territory into a country that will eventually rival the Klondike kingdom. Meanwhile, at the Klondike Kingdom that exiled Adonis, the demons that had been suppressed thanks to Adonis [Dragon King] start to become more active, and the Klondike Kingdom starts to fall slowly. This is an of out of the norm kingdom building story done by an exiled prince. [Comic Walker](https://comic-walker.com/contents/detail/KDCW_KS05202905010000_68/)

The manga's story is an homage to Edogawa Rampo's fictional character Akechi Kogorou. The mystery centers around Mayumi Hanazaki, a middle-school girl who used to live with her aunt and uncle until a mysterious person mercilessly killed both. Now, thanks to an unusual incident, Mayumi relies upon the spirit of the legendary detective Kogorou Akechi to solve case. (Source: Anime News Network)

She is the strongest but overprotective. My childhood friend is the strongest Yankee who can shut up even crying children. But in front of me, she's a kind and loving big sister. Wait a minute, aren't you overprotective?

2000 years after his defeat, the Devil King gets revived by his minions... in the form of a little girl!

A lone man walks through the red-light district. Though accosted by a suspicious street tout along the way, his destination is already set. He tightly clutches a flyer for an establishment known as The Aquarium. His heart sinks when the tout informs him that the place has already gone out of business… (Source: Aokishi, translated)

Takayoshi, an otaku, was murdered by a female stalker named Kurona. He ends up reincarnated in a fantasy world where he is living his isekai fantasy as a hero who is adored by a harem of girls, but unfortunately, his stalker Kurona, after getting killed by the impact from the truck she stole, also ends up in the fantasy world. Now reincarnated in another fantasy world by the goddess he encountered, Takayoshi must be careful with which female he can trust, as Kurona still follows him and may be any one of the women he may encounter, ready to strike at him at any moment.

Entering 2nd year of high school, Yumizuki moved to apartment because 2 hours commuting from home was tiring. However when he and the delivery company reached the apartment, another tenant already started to move to the apartment he supposed to stay. A beautiful girl who just returned from America, Saeki Kirika. Because of their personal circumstances none could concede, and then Saeki propose to share the apartment…