Three years of time difference separated the two brothers. One kept chasing, and the other never stopped. If I run faster, I can catch up with the three-year time difference that separates us.
(As for the writing style, the first chapter is told from the perspective of the ruffian brother, which is relatively relaxed. The second chapter is about what happened from the perspective of the dark and twisted brother, which may not be so bright. The third chapter returns to the younger brother's perspective.)
Intention: