Wow, a friend of mine just gave me a sweet ending that
@diphuc1 might like it !
He said Sakura and Shinobu will meet and both said "I’ve found that having my dream come true means nothing without you by my side. I love you. Could we go back to how we used to be? " Then they end up together without correcting the misunderstanding because it's unnecessary.
It's a positive idea but it's too good to be true ending, right?
IMHO, if Airi Katsura (sensei) had been fired already and someone else had taken over the story for chapters 134 till the end, it might be possible that the ending would be like that. LOL