It's interesting reading people speaking of feeling disoriented after completing the event. I had a similar feeling. For a couple of weeks I assigned myself a daily quota of medals to acquire until I got all the weapons, and my daily routine in game essentially revolved around the Yokai event. Once I finally finished everything I was at a complete loss for what to do. I couldn't even remember where I was at in my various other activities in game. I ended up just giving up and not playing much at all until 3.4 rolled around.