I don't have any problem with open-ended series or series with depressing endings.Cowboy Bebop had one of my favorite endings ever,where you could sort of interpret it in more than one way.It was sad but beautiful.Samurai Champloo,however,left me unsatisfied.It seemed like the studio rushed everything.It was open-ended(I'm not going to spoil it),but it felt unrealistic after everything that had happened to Mugen,Jin,and Fuu.Did anyone else see it and feel the same?