A spy, an assassin and a telepath come together to pose as a family, each for their own reasons, while hiding their true identities from each other.
Two assassins who never miss their mark must juggle fatherhood with their demanding job when they suddenly find themselves raising a four-year-old girl.
When the intimidating Rintaro meets the open-minded Kaoruko, the unlikely duo grows closer. The issue? Their neighboring high schools hate each other.