Kingdom

As a prophecy of doom unfolds on the peaceful land of Britannia, a purehearted boy sets out on a journey of discovery — and revenge.

Sato is a high school boy in love with his best friend Hime, an unearthly beauty from another realm. So when she moves back to her home world to get married, Sato doesn’t think twice—he follows her and crashes the wedding. Then, after a kiss from Hime, he suddenly becomes the new groom! But here, Hime is a Ring Princess and her husband is destined to be the Ring King: a hero of immense power.

In an alternate history where the male population is nearly decimated, eligible men serve as concubines to the woman shogun inside the walls of the Ooku.

After losing his home to a powerful enemy, a hot-tempered fighter trains under his zealous grandfather while awaiting his chance for revenge.