Things that stand out to me is the piano composition that flowed with the mood. It's like playing rhythm games. good piano, good music,m good BGM. blah blah blah blah
Characters are highly predictable, it's like the anime was playing Dragon Age and allocating different strategy to them in a given order. Characters meh blah blah blah blah blah blah blah
Plot is predictable since there are so many big hints being dropped. That being said, this is not a mystery type of show - the feel is kinda more like Baby Steps. Plot twist you say? Well, depends on how you look at it. blah blah blah blah blah blah