Usually I am not attracted to this kind of genre (time travel, scifi) because I do not want to be sucked into overcomplicated plot, but derailment managed to make it not only enjoyable, but also one heck of a ride.

Decisions of every characters were all humane and logical. Plot is progressing perfectly the first 20 episodes pocketed, not even a single thing being dragged. But the rest... I find them boring so I skipped most of it. As expected with this kind of genre, there are parts where the narrator was unreliable and there are a lot of red herring, but that's the beauty of scifi genre. We dont know who to trust.

The acting of the main leads are all very commendable as well. Lin Yi really embodies the perfect dark-outside-but-sweet-inside gentleman with his microexpressions and subtle gesture. I would say the screenwriter has certain moodboard and idea dedicated to his character here! Liu Haocun also steals the spotlight, it seems like she could turn on and off of her tearduct in a blink of an eye. She is a pretty crier, i want to comfort her when she cry.