description：

Misshaku and Naraen are members of the Yamato Empress’s secret security detail – the OWLS. Loyal only to the Empress, this secretive service lurks in the shadows, keeping the “true” royal bloodline alive during the Decade of Chaos when the old island empire fell apart. Unlike the imperial guards, the OWLS do not belong to the government, but are maintained by the Hundred Eyes Alliance – a loose league of powerful notables who balance the country’s various factions.

Yuto, codenamed Misshaku, is heir to the great kobudo master Shinmen. A precocious young martial artist, he trained day and night to polish both his body and mind. Though meticulous to his duties out of bushido chivalry, he couldn’t help but feel stifled after joining the OWLS, where the dullness of the palace paled in comparison to the excitement of faraway battlefields. After the young Empress ascended the throne, he was struck by her perseverance and kindness, and soon began to view her as family. Yet the scheduled monotony of Yuto’s life would soon be upended, as a series of assassinations attempts on the Empress would finally put him to the test…

Yuma, codenamed Naraen, is Yuto’s impulsive little brother. A troublemaker who frequently rebelled against his elders, Yuma looked up only to his older brother, who awed him with his skills and character. In fact, Yuma was sent to the OWLS because only Yuto could keep this wild one in check. The secretive nature of the OWLS did not sit well with Yuma, and soon he was banished for breaking too many rules. However, fate reunited the brothers when the assassination attempts on the Empress began to unfold into a much larger conspiracy. The Empress needed capable and trustworthy allies, and the two brothers, though sometimes at odds, are godly when paired together in battle.

密跡和那羅延是大和共和國天皇隱秘衛隊——「梟」的成員。當曾經的島嶼帝國分崩離析陷入一片狼藉，他們依然忠於天皇，潛藏在暗影之中，維持真正的皇室血脈能夠延續。與天皇近衛隊不同的是，「梟」不隸屬於政府，而是來自「百眼同盟」——由顯赫人物結盟，維持國內各方勢力平衡的組織。

悠人，代號密跡，是著名古武道大師新免的繼承人，年少成名的武術家，日以繼夜地打磨肉身和心境。恪守武士道精神、細心盡責的悠人，在成為「梟」後卻感受到一絲窒息。相比能令他心潮澎湃的遠方戰場，身處宮殿之中過於枯燥。直到年輕的天皇繼位後，悠人被她的堅韌與善良打動，在內心深處將她視為家人。針對新天皇的一系列暗殺行動戛然而來，平靜的局面被瞬間打破，在暗流涌動之中，悠人將要承受巨大考驗……

悠真，代號那羅延，是悠人血氣方剛的胞弟。在長輩面前顯得狂妄無禮的悠真，卻因悠人的武道及人格魅力，而極為崇敬。悠真加入「梟」的最大原因之一，就是只有悠人才有辦法約束這桀驁不馴的狂獸。但悠真與「梟」低調隱秘的行事準則格格不入，很快便因違反多項規則而被放逐。當針對新天皇的暗殺行動逐漸牽連出背後更大的陰謀時，新天皇需要有能力並且值得信賴的盟友。於是，仿佛命中注定般，兩兄弟得到了再次聯手的機會。儘管悠人和悠真有時會出現意見分歧，但他們戰鬥時無間配合爆發出的絕強戰鬥力，宛如鬼神在世。