The article presents a new political biography titled 'La hermanísima' which focuses on Kim Yo-jong, the younger sister of North Korean leader Kim Jong-un. The biography, authored by South Korean academic Sung-Yoon Lee, portrays Kim Yo-jong as a powerful figure within the North Korean regime, widely regarded for her ruthless tactics. Lee suggests that she is considered the second most influential person in the country, with many in the government reportedly fearing her cruelty, referring to her in hushed tones as a 'bloodthirsty demon' and 'the diabolical woman.' The narrative explores her actions, including ordering the execution of political rivals, which demonstrates the extent of her power and the atmosphere of fear that pervades North Korean politics.

Furthermore, the article highlights Kim Yo-jong's formal role as the Vice Chair of the Workers' Party of Korea, placing her alongside numerous other high-ranking officials. However, it emphasizes that her real influence comes from her position as chief advisor to her brother, Kim Jong-un. This effectively allows her to wield significant power behind the scenes, manipulating decisions and political strategies that affect North Korea. The biography presents a gripping portrait of a woman who, despite her relatively low official position, is a key player in one of the most secretive regimes in the world.

The implications of this portrayal are profound, as it sheds light on the complex dynamics of power within the North Korean leadership. By examining Kim Yo-jong's character and actions, the biography not only details her personal ambition but also reflects the broader authoritarian nature of the North Korean regime. The insights provided could foster greater understanding of the internal machinations at play in Pyongyang and the potential continuities or shifts in leadership style as the country faces both internal and external pressures.