Tenka Touitsu Koi no Ran: Shutsujin! Saika 4-nin Shuu  

天下統一恋の乱~出陣! 雑賀4人衆~, Tenka Touitsu Koi no Ran: Shutsujin! Sanka Yoninshuu, 天下統一恋の乱　出陣！雑賀4人衆

The 15th century in Japan was marked by continuous warfare as various lords vied for control over the land. Tragically, your father fell in battle, leaving you and your mother to run their family restaurant. However, things took a dark turn when an evil magistrate ordered your little brother to be taken away and made into a poison taster. In order to save his life, you disguised yourself as a boy and journeyed to the castle where he was being held captive. But what awaited you there was far more than you could have ever imagined!