Dyslexia

After watching the ending, I feel there's something unclear: The fact that Do-jun provoked his uncle to the point of murder suggests he was actually Hyeon-u possessing the body, using knowledge of the future to become chairman. However, Do-jun had already worked hard to prevent Hyeon-u's father from losing his job—he bought their snack shop, ensured Hyeon-u's father didn’t need to take out loans, and improved their family's situation to the point where Hyeon-u shouldn’t have had to drop out of college. There’s no reason Hyeon-u should have even been present at the scene of Do-jun’s accident. The ending makes the show’s logic fall apart, and that satisfying thrill of foreseeing the future just vanishes.