The city of light is a town above a hill, called that because it's surrounded by the sun, but it hides an obscure side. There, lives Tasuku, a young kid who works as a 'messenger' for a mysterious group who organizes suicides on the phone. At the same time other youngsters like him are trying to survive the everyday's life: Satoshi changes one occasional job after another, Momoko is the daughter of a prostitute who abandoned her. Finally there's Hoichi who is always involved in dirty business, among which is the suicidal group, but at least he has a dream: earning enough money to buy the whole place and turning it back into the country village he was born in.

Hikari no Machi was published in Polish by Hanami on November 1, 2010; in Brazilian Portuguese by Panini Comics in July 2017; in Spanish by Norma Editorial on April 28, 2017; and in Argentina by Editorial Ivrea on May 20, 2022.