It was speculated that Lee Cheong-san (Yoon Chan-young), who sacrificed himself for his friends, would be alive.
It is argued that evidence can be found in the scene where he disappeared into the flames with Yoon Gwi-nam (Yoo In-soo) at the end. Recently, a video titled “Lee Cheong-san Is Alive, “All Of Us Are Dead” Official Review” was uploaded on the YouTube channel “영화읽는여자” (Girl Reading Movies).
First, the YouTuber introduced Lee Cheong-san as a brave person who sacrifices himself to save his friends from zombies. In fact, Lee Cheong-san stepped up for his friends even though he was in a dangerous situation that he might die.
However, he could not beat Yoon Gwi-nam, who became a person who is immune to zombies. Lee Cheong-san was bitten off by Yoon Gwi-nam. Lee Cheong-san, convinced that he would soon become a zombie, helped his friends escape, and in the process, he provoked Yoon Gwi-nam to attack him.
At that time, when the bomb exploded at the school, Lee Cheong-san fell into the passageway of the elevator under construction while hugging Yoon Gwi-nam. Regarding the scene, the YouTuber said, “It may seem that both died as the explosion occurred to the construction site, but only Yoon Gwi-nam died in the explosion and Lee Chung-san is likely to be alive.”
Lee Cheong-san also appears to be immune. Just as Choi Nam-ra (played by Cho Yi-hyun) did not become a zombie after being bitten by Yoon Gwi-nam, Lee Chung-san did not turn into a zombie for quite a long time, the YouTuber explained.
The YouTuber then said, “Lee Cheong-san was holding Yoon Gwi-nam as if he was a shield in the direction of the explosion. If they fall as it is, Lee Cheong-san’s body will touch the floor, and the flames of the explosion will only get to Yoon Gwi-nam.” She said, “Lee Cheong-san is also an immune person, so even if he falls from a high place, he will not die. He predicted that he would have endured the explosion by using Yoon Gwi-nam as a shield.”
Finally, she believed that Lee Cheong-san would have been hiding in the school because he did not want to show himself as a zombie to his crush and childhood friend Nam On-jo (Park Ji-hoo). As predicted by the YouTuber, hopefully Lee Cheong-san will revive and lead in Season 2 of “All Of Us Are Dead.“