My older brother broke off his engagement and self-destructed. The cause was me, but I'll take that story to my grave.

"I didn't want to become king, but I hated even more the thought of Sister Eme being sad..." My older brother became obsessed with the woman he cuckolded me with, broke off his engagement, and self-destructed. Why it happened is my secret alone. I'll take it to my grave, never letting anyone know. The protagonist's internal monologue is the main focus. The condemnation drama ends in narrative death. ※Contains sexually uncomfortable expressions. Please be cautious if you dislike that kind of content.