City of Walls was a Drama Webtoon Original written by A.K. Lovelace and illustrated by Shaun Noel; it concluded on February 5, 2017.
Welcome to the prison-like city of Kowloon. A cluster of conjoined buildings run by gangs. Where the ability of an individual to hope is non-existent. Daniel, Jin, and Ariana are three kids who defy this life sentence. They intend to escape and are willing to go to extreme measures to do so. Since escape on foot is impossible, their quest leads them to the sky.