Meanwhile, Song Gang presented ‘The Astronomical Chart’ as evidence that Kim Du Seo was involved in the coup, in front of Gwang Hae, who’d gone to see King Seon Jo to save Ga Hui and his brother, Prince Im Hae. Ga Hui thought Gwang Hae gave the book to King Seon Jo, and felt betrayed. She went to Prof. Ko and agreed to become King Seon Jo’s concubine to save her parents. Gwang Hae found out about it, and tried to talk her out of it.