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

Arnold, the seventh Imperial Prince of the Adrasia Empire, is known as "THE INSIPID PRINCE" due to his overshadowing by his intelligent twin brother. Secretly, he is SILVER, one of only five SS-rank adventurers in the continent. When his younger brother Leo sets his sights on the throne, Arnold works from behind the scenes to assist him. He is joined by an unexpectedly beautiful woman who becomes his assistant. A covert power struggle begins.