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Record of Ragnarok

Shuumatsu no Valkyrie
終末のワルキューレ
종말의 발키리
Đại Chiến Người Và Thần
Los Registros del Ragnarok
Ragnarok Kaydı
Rekam Jejak Ragnarok
Valkyrie Apocalypse
Walkirie kresu dziejów
Повесть о Конце Света
Повість про кінець світу
Рагнарок
تاریخچه رگنوراک
سجلات راغناروك
มหาศึกคนชนเทพ
終末的女武神
终末的女武神

Spin-off

manga
The ultimate spinoff of Record of Ragnarok!! Lü Bu was the first to fight for the mortals in the final battle between god and man, Ragnarok. The legends of his martial prowess are portrayed in this Three Kingdoms wuxia story. 

(Source: MangaHot)

Spin-off

manga
In 1888, a number of prostitutes were murdered in London, by someone known only as "Jack the Ripper". The murderer takes to the streets each day, looking to slit some unfortunate woman open....... The past of Jack the Ripper, the English gentleman who represented the human side in the fourth round of the struggle between God and mankind known as Ragnarok, who was one of the top-three most popular characters in the character poll, is finally revealed! 

(Source: MangaHot, translated)

Spin-off

manga
Zeus, supreme chairman of the Council of Valhalla, announces to the gods twelve of the thirteen fighters set to participate in Ragnarok--and is met with the dissenting voices of those who were not chosen. However, Zeus has foreseen this, and immediately declares the holding of another tournament to decide the final spot on the Ragnarok lineup, one which will break the taboo on gods fighting one another. Thus begins the "Revelation" of the untold side of Record of Ragnarok!

Other

manga
The Shinsengumi were a special police force in Japan in the 19th century. Tasked originally with protecting the Shogunate, they eventually dedicated themselves to restoring order in Kyoto. Hijikata Toshizo is responsible for the death of the Shinsengumi, but he was once one of them. This is his story. If you like Golden Kamuy, check this one out. 

(Source: Mangamo)