Junior high schoolers Sudo Ai and Sosuke Ito live together as a patchwork family in a small town in Hokkaido, all thanks to Ai’s mother, Yumi, creating an environment of love. Bullying and the harsh environment cannot pierce that safety until Yumi dies. Cast adrift, the kids are separated, Ai is taken to Tokyo by her father, and Sosuke is left behind.
Eight men and women with heavy debts, are trapped in a situation where they cannot survive. The eight people are invited by a mysterious man named Ninomiya, an agent of Mr. X, to play a "lottery game" at a permanently closed hotel. The game involves risking their lives and their money. Who is Mr. X and what is the purpose of the game? (Source: DramaWiki)