I'm calling it right here. That Hyun-Woo did something bad and Jae-Seong saw it and had to run away. He couldn't talk to Soo-Ah about it since Hyun-Woo probably threatened to kill her or something. And Hyun-Woo comes and helps Soo-Ah just to see if she's in contact with Jae-Seong so no one will...
so is there like two different timelines going on if this is not a dream? I only ask because the actions of the future mc is making in the past aren't affecting the situation of the future so is the mc making a new timeline that will have a different future?