When Midori was reaching four years old, her father unexpectedly passed away. Yukari has no idea what to do, and Usaida reluctantly takes the role of the 'husband' (again) and - now father? - until, he claims, the Sawatori duo are able to "move on peacefully". What if everybody suddenly got a little too comfortable with the arrangement? Slow burn Usaida/Yukari feat. Dad!Usaida.