A lot of unanswered questions. What happened to that other guy with Misophobia during the time they split? How'd he recover? What about the dad? What about the dad and student's relationship? Where was Shirotani's mom? Is she also to blame for Shirotani's affection for his father? What about Kurose's past? All we know he had a relationship with someone else who had misophobia. It just would've been nice to know more. They brought open a lot of interesting stuff but never concluded them :
Those were interesting elements but did any of them really matter? We saw enough to understand the main characters and their motivations. We got the important pieces.
They had the potential TO matter. Insight into understanding the characters and it gives them more depth. It really does separate a good story from a bad one. You can present a story in the more clear-cut one dimensional way or add more elements to give it more depth and have a more thought-provoking outcome. Regardless these are what I prefer and I'm sure that a lot of others can someone sympathize with me. Why introduce these characters without a conclusion? That's why it feels rushed and it could have been presented with more information. Rather than it mattering, it's confusing for us readers to digest thus impairs the experience. I love Takrai Rihito don't get me wrong but the ending was admittedly abrupt.
I know that some people will be disappointed that TC is over, and for that reason alone, they will be disappointed in the ending, but for everyone else...
Where did you see this story going that you are expressing disappointment???
Shirotani seems happy and he and Kurose are together... He's able to easily do things that used to cause him anxiety to the point of nausea...
Happy ending....
So... WTF are you so sad about?