Grandpa Han, despite being credibly accused of treason, teams up with Scion Lee's end of the royal family to essentially force a coup d'etat entirely on the strength of Grandpa Han's allegation that King Lee is a woman. While this is true, the accusation is much less serious than Grandpa Han's being charged with regicide. Moreover, the main evidence proving the crown prince's twin sister ever existed implicates Grandpa Han in the coverup. He was the only person who had a motive to even do a cover up, The King's Affection, Bae Yoon-kyung, Choi Byung-chan, Han Hee-jeong, Jung Chae-yeon, Lee Hyun-suk, Nam Yoon-su, Park Eun-bin, Rowoon, Song Hyeon-wook