Orphaned on the mean streets of Treasure Town, lost boys Black and White must mug, steal and fight to survive. Around them moves a world of corruption and loneliness, small-time crooks and neurotic police officers, and a band of sadistic yakuza who have plans for their once-fair city. Can they rise above their environment? Surreal manga influenced by European comics.

Homunculus (ホムンクルス, Homunkurusu) est un seinen manga écrit et dessiné par Hideo Yamamoto. Il a été prépublié dans l'hebdomadaire Big Comic Spirits de l'éditeur Shōgakukan, et a été compilé en un total de 15 tomes.