Nobody Knows Season 1 Episode 12 (2020)

Sang Ho and Sun Ah get anxious and try to find the book before Young Jin does it. But since Jang Ki Ho is the only one who knows how to decipher the map in the book, they have to keep him alive. Meanwhile, Eun Ho starts regaining his memories little by little, and Young Jin and Sun woo try to find the book with his memories.