Chūkan Kanriroku Tonegawa

Ne'er-do-well Kaiji Itou's shiftless existence is suddenly rattled by a visit from the yakuza. Burdened by debt and resentment, Kaiji is coerced into gambling for his worthless life. As the stakes grow higher and the rules become increasingly more bizarre, Kaiji must finally take the future into his own hands! (Source: Denpa) *Note: Won the 22nd Kodansha Manga Award for general manga in 1998.*

Ootsuki, the foreman of the underground debt-slave labor camp, is finally using his one-day vacation above ground. The blacksuits of the Teiai Corporation follow him to make sure he doesn't escape, but are constantly baffled by the completely mundane ways he decides to use his time.