Ryoma Mikoshiba, an ordinary high-schooler adept at martial arts, one day finds himself summoned to another world.
The ones who summoned him, the O'ltormea Empire, cite the fact that 'when those summoned kill another living being, they can absorb a fraction of their strength and make it their own' as their reason.
But upon learning the empire uses those they summon to strengthen themselves by foul means, Ryoma is consumed by hatred and slays an important member of the O'ltormean court.
Attempting to escape the Empire's borders while keeping his identity a secret, he is accosted by two twin sisters- one golden-haired, the other silver-haired- in a meeting that sets the gears of fate in motion.
The curtain rises on a record of the wars of a young supreme ruler in this other world fantasy!
The ones who summoned him, the O'ltormea Empire, cite the fact that 'when those summoned kill another living being, they can absorb a fraction of their strength and make it their own' as their reason.
But upon learning the empire uses those they summon to strengthen themselves by foul means, Ryoma is consumed by hatred and slays an important member of the O'ltormean court.
Attempting to escape the Empire's borders while keeping his identity a secret, he is accosted by two twin sisters- one golden-haired, the other silver-haired- in a meeting that sets the gears of fate in motion.
The curtain rises on a record of the wars of a young supreme ruler in this other world fantasy!

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Ryoma Mikoshiba has reluctantly withdrawn from the Kingdom of Myest, setting his sights on the troubled Kingdom of Xarooda. With King Julianus bedridden by a prolonged illness, tension is rising among the nobility and whispers of allegiance between Xarooda and the powerful O'ltormea Empire are growing louder. Fearing the kingdom's downfall, Ryoma sends a skilled demi-human healer to aid the ailing king. However, behind the scenes, he begins a ruthless purge of the corrupt nobles who threaten Xarooda from within.