Responses
Spoiler
as far as I remember from the novel, Lee Kangjin sacrificed himself because it was all related to the trait he has. but cmiiw though, because I already finished the novel long ago, I just slightly remember about him and Lee Dongmin (a classmate of Chaeyoon) who then became "the dungeon" itself after he died
The MC said there were five of them who survived on the great dungeon, but only four of them came out — I just want to know what happened to the man name Lee Kangjin?