Lin Han, who is in the late stage of brain cancer, enters the eerie instance of the anomaly training ground as a trainee in search of a glimmer of survival. Possessing the special ability to hear the heart voices of objects, he uses this ability to crack fatal rules such as the "Text Guillotine" and "Magpies Building a Bridge", repeatedly defeating the villain Guo Haofeng who coveted him, and cleverly uses the rules to eliminate him. During the process, Lin Han makes friends with and helps players such as the fat man Sun Yangcan and Yang Qianqian, eventually seeing through the core test of the scarlet instance eliminating the seven deadly sins, successfully clearing the level, curing his brain cancer, and even gaining the qualification to actively enter eerie instances. Returning to reality, Lin Han discovers that his parents fell seriously ill from grief and were admitted to the ICU due to mistakenly believing he had passed away.