umm where do i begin?

After finished watching I still left a little confused..

Female lead Tan Jiao discovers that she mysteriously lost one year's memory, and that is after she boarded a cruise. On the cruise she meets the male lead Wu Yu and the younger sister Wu miao. She gets a mysterious note and is intrigued by the note and decides to meet up. At the same time in their city there has been a serial murder of 5 woman. Wu Yu sister also gets murder. They are basically trying to find who is the culprit.

The story reveals too much./ has a lot things going on...
like.. suddenly in ep 7 they can travel back in time but can only stay 15 days. Through each time's travel they change the course of whats happen

Tan JIao almost dies like twice, same for the male lead

To be honest the store's pacing is not even., kinda dull and finally everything towards the last 5 episode. I had a bunch of questions throughout that werent anwsered. The suspect you suspect isnt actually the culprit...

The lead's chemistry is minimum. I think li yi tong did a great job... but JIn han on the other hand wasnt as convincing to me. I cant really see it his eyes the love her has for the female lead. The female lead expresses it better. I still say that the time travel drama cant beat the taiwanese one ( Some day or one day)