Copyright: emergence

Emergence (Henshin in Japanese), also known as Metamorphosis and 177013, is a hentai manga by artist ShindoL, which gained much notoriety online for its depressing, grimdark storyline. The story is often referred to by the number "177013" in reference to its assigned page number on the hentai database nhentai.net.

The plot follows a teenage girl named Saki who transforms from a nerdy introvert into a drug-addicted, homeless prostitute.