Story - the story is wonderful and slightly complicated because of the time travel. But if you keep watching it, you can slightly enjoy it.
Also, i think the story plot was great. but there were some parts that were either a little too cliché or doesn't make logical sense.

Acting - both ryota and anna did a good job.
I very happy for their presentation. Good job to you two!

Music - it was set for a beautiful song, and my fav was Snowstorm (the opening song) that was sing by my idols zhou yanchen and zhang Xin (that I never thought she can sing like an angel) .... MY EARS ARE BLESSED!!