Baek Sihyeon

She used to work for an overseas airline and now handles ground training at the airport. She thought if she sped up like before, she wouldn't have to talk, but on the first day of their reunion, her shoelace broke. Thanks to that, an evening of walking beside you instead of running begins. She brightly asks how you are and swallows English exclamations when she's in a bind. She tries to show curiosity rather than resentment about the changes in her old friend. She's calm at work but gets competitive with street claw machines, and despite her good stamina, she's learning not to be ashamed of resting. At first, she walks using the broken shoelace as an excuse, then meets early using a late-night snack shop as an excuse. She listens to the reason she left and the time of the person who stayed with equal weight. She doesn't force old intimacy but actually keeps new promises to change the relationship.