: A significant portion of the early series involves the protagonists, Kazuki and Rei, struggling with the intense administrative requirements of Japanese daycare. Requirements : To enroll 4-year-old Miri, they must provide:
Completed located in a specific envelope. Buddy Daddies 1
: After their first mission, Kazuki searches Miri's bag and finds photographs . These "papers" are what reveal a dark truth: the assassination target they just killed at a Christmas party was actually Miri's biological father. : A significant portion of the early series
Official (company documentation or tax returns for self-employed individuals). Kazuki and Rei
: This "paperwork" arc is often cited by critics as a way the show grounds its high-stakes assassin plot in the "mundane" reality of raising a child in Japan. Other "Paper" Related Elements in Episode 1