Roppongi Black Cross
Synopsis
One day, a yakuza gang member is attacked in Roppongi, Tokyo. This is only a prologue to one man's revenge story, triggered by the events of twenty-two years ago. The flames of revenge burn in the darkness of the city... (Source: Manga Box)
Background
Roppongi Black Cross was simultaneously published in Japanese, Chinese and English on DeNA's Manga Box app.