When two hit men take out a dangerous mobster, the last thing they expect is for him to have a four-year-old daughter – now an orphan. But when they decide to take custody of the child, their life turns upside down! Between a mission here and a shootout there, the two hired killers will have to find time to prepare nutritious meals, stimulate the child’s intellectual growth, and take the little one to daycare!

As master assassin Usui Yuen looks into a series of assassinations made on the grand samurai clan, the Satsuma, he encounters Kurima Raizo, member and survivor of one of the attacks. Together, they discover the true nature of these murders is bigger than over stolen resources. As they get closer to the truth, will they come out alive to exact revenge?