I Wanted to Escape From This Transmigration, but the Seme Is Too Yandere! (Associated Names)

I found myself possessing the protagonist of a 19 dark BL novel. The protagonist, who is confined and mistreated by the obsessive gong, ends up taking their own life. Fortunately, I possessed the character at the beginning of the novel. Before meeting the main antagonist, who is the primary cause of the dark ending, I…