E-sports events play a crucial role as significant entertainment activities and platforms for emotional interaction among the public. This study seeks to delve into the processes underlying the emotional experiences of online spectators during interactive rituals within e-sports events. It employs the core concept of emotional energy within interaction ritual chains as framework for analysis. To accomplish this, we conducted one-on-one semi-structured interviews with 20 online spectators actively engaged in the League of Legends professional league. These interviews specifically targeted their emotions, feelings, evaluations, behaviors, and other relevant experiences both preceding, during, and subsequent to spectating. Our analysis revealed four distinct stages within the emotional energy change process: emotional arousal, immersion, climax, and continuity. These stages collectively culminate in the formulation of a dynamic, continuous, and cyclical emotional energy model. Notably, spectators adeptly employ various emotional regulation strategies to mitigate the impact of disruptive factors. The integration of ritual symbols, coupled with the positive feedback loop of emotional energy, serves to connect the five identified stages and establish a cohesive cyclic upward mechanism. These findings not only offer unique insights into the micro-level emotional experiences of online spectators but also hold practical implications for the effective management of e-sports events.