Responses
"Once a year, on the 7th day of the 7th lunar month, a flock of magpies would form a bridge to reunite the lovers for a single day. Though there are many variations of the story, the earliest-known reference to this famous myth dates back to a poem from the Classic of Poetry from over 2600 years ago."
So I'm guessing that she's a plot device to introduce the leads to each other.
This looks fun. There really aren't enough "transported into a novel/game" series where the MC breaks down either from losing their past life or from how fucked up the whole situation is. I never even thought of the potential "what's the point of living if I have no choice" element.