It all starts with Red Diamond.** 'Cha Geon-moo' (Soo), who infiltrates the after-party of L Company's shareholders' meeting to find clues about Red Diamond, encounters 'Yeon Tae-oh' (Gong), the youngest son of the Yeonseon Group and a genius racer. While chasing the target, Geon-mu witnesses Tae-oh drinking drugged alcohol, and ends up saving Tae-oh and missing the target. We entered the hotel to let the drugged Taeoh lie down, but something strange happened to the drugged Teo... ? “Why don’t you take responsibility for everything you already have?” Geonmu, who was helplessly caught up in Taeoh's actions, leaves the hotel room disgusted by Taeoh's arrogant attitude and vows never to see him again, but he hears that his target, Red Diamond, is related to the Yeonseon Group... “This debt will be properly repaid later.” Will it be a passionate pleasure that burns in an instant, or will it be a tough and cruel relationship? *Published serially on the 4th, 14th, and 24th of every month.