Good news: I've been transported to a world of anime! Good news: I'm no ordinary person, having directly inherited a high-ranking demon family—the Diablos! Good news: "Silver-haired Queen of Annihilation"—Gurefia Lucifergus—is my steward! However, only Guber remains in the family. Fortunately, I've unexpectedly gained access to the [Great Collector] system. Collecting valuable items will earn you rewards. Collecting items that qualify you as a Child of Fortune will unlock hidden rewards! ... Before Guber can even begin to unleash his power, he's invited to join the Wanjie chat group. ... Day 1: Collect Tendo Ryukenki and grant him the "Soldier" chess piece. Day 2: Collect King-level Assassin and grant him the "Soldier" chess piece. Day 3: Collect the Empire's strongest general and grant him the "Chariot" chess piece. ... Day N: Collect the Silver-haired Queen of Annihilation and grant him the "Queen" chess piece. ... To revive the Diablo family, Guber resolves to keep busy. After several years, the number of beautiful girls around him inevitably increases. ...