To me, this series can be defined well as "it is not what I wanted, but it is closure".
Everyone carries pain, sorrow, and regret, but having people by your side to help, well... it helps a lot, but in the end... the pain is still there but you keep going.
Kou running from her was so funny XD.
Uhh was this the first time we get to know the miss detective's name?
No, we knew already, since her flashback actually, but Kou still called her miss detective or Nazuna calls her senpai, we simply didn't see much of her name.