Maria Himuro, a bullied student at an elite girls' academy, is hiding her true identity as the daughter of the boss of the Himuro Group, a powerful Yakuza organization. After her father is attacked, Maria inherits his position as boss, but she soon gets caught up in a mysterious explosion that sends her back to the Warring States period. There, she meets none other than Oda Nobunaga, who aims to unify the country under his mighty rule.

In the turbulent Warring States period, where powerful warlords compete for supremacy, Maria uses her natural charisma and practical combat techniques [The Himuro Style] to charge forward. With Yakuza pride in her heart, she’s cute, strong, and resilient! The Warring States action story begins!