"Chaser" by UP10TION is a song about regret and the desire to make things right in a relationship. The lyrics depict the narrator following the trail of their loved one, feeling guilty for making them sad and acknowledging their own mistakes. They express their longing and yearning for the person they miss. The song conveys the hope that if they had held onto their loved one tighter or noticed their loneliness, they could have changed the future. The rainy imagery symbolizes the tears and emotions that the narrator is experiencing. They express their determination to keep chasing after their loved one, desperately needing their love and wanting another chance to make things right. The lyrics also touch upon the frustration of not being heard or understood, with the narrator not wanting to hear any excuses but seeking genuine forgiveness. The song reflects the emotions and struggles of a person who deeply regrets their past actions and is willing to do whatever it takes to reconcile and be with their loved one again. Overall, "Chaser" is a heartfelt song that explores themes of regret, longing, and the pursuit of love.