With their parents falling in love, Alpha Yeonghan and Beta Minjae are about to become family. While acting as his hyung and looking after the accident-prone Minjae, Yeonghan steps out to pick up some cold medicine, only to discover that Minjae has suddenly presented as an omega. Overcome and not thinking straight, Minjae throws himself at Yeonghan. Caught off guard, Yeonghan tries to pull away, but…