Brainwashed Heir (C99) [Keigai Tengen (Momofuki Rio)] Sennou Sareta Iemoto

In 'Brainwashed Heir', the manga follows a young heir who is manipulated and brainwashed into following the orders of a mysterious organization. As he struggles to break free from their control, he uncovers dark secrets about his family's past and the true intentions of those pulling his strings. With danger lurking at every turn, he must find a way to reclaim his autonomy and confront the forces that seek to use him for their own sinister purposes.