Review of Masamune-kun's Revenge OVA

They don't explain anything at all about the ending. A lot of things can be deduced yes, but we all knew how the story was gonna end since ep1 (cold princess falls in love with Masamune) like any other cliche school anime. And that's why the reason we're here was to see the development of the story and how they end up being a happy couple. But they didn't explain anything. Koiwai seems to have a better life now, she's not being bad treated by the cold princess anymore and that's nice. But it doesn't make sense, because in the end Masamune didn't reject herand made her feel the pain of being crushed so she becomes more humble (this was the plan Koiwai and Masamune had at the beginning of the anime).