The sources provide a comprehensive overview of the Japanese martial arts manga Isshou Senkin, written by Yabako Sandrovich and illustrated by MAAM. The story centers on three ambitious women―a former fighter, a yakuza leader, and a corrupt police officer―who establish Valkyria, an underground combat promotion specifically for female athletes. Central to the narrative is Hina Hongo, a high school student and former cult member whose cute appearance masks terrifying combat skills and a chaotic personality. These documents detail the series' shared universe with other popular works like Kengan Ashura, establishing a clear chronological timeline and character connections. Additionally, the text catalogs various fighting organizations, criminal syndicates, and a diverse roster of competitors distinguished by their unique martial arts styles and backstories. The materials also include publication data, volume release schedules, and deep dives into the complex internal politics of the illicit combat world.