𝐑𝐢𝐧𝐚𝐤𝐨 𝐊𝐚𝐧𝐳𝐚𝐤𝐢 was raised to be the queen on the chessboard. With brilliance in her blood and the weight of a medical dynasty on her shoulders, she spent her life calculating every move,winning over every room, and crushing her every opponent. All except one. 𝐒𝐡𝐮𝐧𝐭𝐚𝐫𝐨 𝐂𝐡𝐢𝐬𝐡𝐢𝐲𝐚, her mirror and her opposite, the heir to a rival empire. Their rivalry was a cold war of perfect scores, stolen glances, and a game neither could afford to lose. A lifelong match of white versus black. But when the world shatters and they're stuck in the Borderlands, their endless match is interrupted by something far more dangerous. Now, stripped of privilege and trapped in a new world, Rin and Chishiya must face the one thing they never prepared for: Each other.

"fate 𝘯𝘰𝘶𝘯 the development outside a person's control, regarded as predetermined by a supernatural power."

With plenty of struggles, 𝐘𝐔𝐙𝐔𝐊𝐈 𝐁𝐀𝐘𝐀 and 𝐒𝐇𝐔𝐍𝐓𝐀𝐑𝐎̄ 𝐂𝐇𝐈𝐒𝐇𝐈𝐘𝐀 made it out of the Borderlands safely. Now their lives are becoming peaceful. At least, as peaceful as life gets with three kids. Chishiya was convinced he'd never experience something worse than being buried alive, but when his youngest daughter 𝐇𝐀𝐍𝐀 starts to show a little too much interest in Arisu and Usagi's son-𝐊𝐀𝐄𝐃𝐄-, he begins to long for the coffin again. In ancient myths, realms like the underworld are never truly destroyed; they only get put 'to sleep' by powerful anchors- linchpins, for example. So when the linchpin's oldest son gets too close to the everlasting playing cards, he 𝐰𝐚𝐤𝐞𝐬 something familiar.