Library

Hidden in the folds of countless parallel worlds is a space called "ruins." They are made of human regrets - unspoken farewells, obsessions that cannot be obtained, and resentments that end with hatred. Every strong emotion is turned into bricks and stones, building up cages that trap "remaining souls". When he woke up, he was standing in front of an old, half-burned building. He didn't remember who he was, but he only knew that there was a voice in his mind saying: "Untie the regrets here so that you can go back." He soon discovered that there were more than one "bell-breakers" like him. They traveled through different ruins and faced the ghosts' ghosts - some were trapped in the rainy night of betrayal, with broken glass embedded in their fingernails; some guarded the empty ward, repeating unfinished instructions over and over again; some were roaring in the endless darkness, resentment like vines entangled with them beyond recognition. Here, only by keeping calm and finding a way to survive can they survive...