Saikyou Degarashi Ouji no Anyaku Teii Arasoi: Munou wo Enjiru SS Rank Ouji wa Koui Keishou-sen wo Kage kara Shihai suru

In the Adrasia Empire, Prince Arnold, known as "THE INSIPID PRINCE," is overshadowed by his genius twin brother. Unbeknownst to all, Arnold is secretly SILVER, one of the continent's elite SS-rank adventurers. When his younger brother, Leo, announces his ambition to claim the throne, Arnold begins a covert operation to support him. Operating behind the scenes, Arnold utilizes his adventurer skills and influence to navigate the treacherous political landscape. His secret struggle is further complicated when he gains a beautiful lady as his assistant. The anime explores themes of hidden strength, sibling rivalry, and the complexities of imperial power.