This manhwa is hauntingly beautiful

The Horizon is a 21 chapter manhwa set in a post-apocalyptic world ravaged by war. It follows the story of two kids (the Boy and the Girl), as they try to survive on this tragic world. As they keep on moving forward, they will face different kinds of people, and challenges that will make them form their own perspective of the world. It is a cruel story as it uncovers the most painful truths of human existence.