Gambling. Mahjong. Death. These are the themes of this fast-paced, undercover-agent-style manga where outrageous life-or-death gambles are made daily occurrences and insurmountable odds are overcome. The most hardcore, action-packed mahjong manga you will ever see. (Source: MU) Nana-chan Scramble (Nana the Scramble Girl) What do you think about this manga?