The future of the Ten Kings of Hell was secured by granting them heirs amidst a surge of sinners. These ten heirs were childhood classmates who grew up together. This set of tales chronicles their relationships. "Enma's Studies" follows Enma, who was always academically gifted but is now perplexed by a lesson on 'Eros.' This prompts him to seek assistance from the carefree Sotei. "Byodo's Unfair Romance in All Fairness" examines Byodo's longstanding crush on Godo. Unfortunately, Godo is infatuated with mutual heir Toshi, leaving Byodo heartbroken and leaning on Taizan for empathy. Finally, "Shinko's Dilemma" illuminates the difficulties faced by the heir to the first seat. Shinko, renowned for his sensitivity, is intrigued by the mysterious 'Blackhat.' This generates a moral predicament between his own tendencies and his father's imposing stature.
