I Regressed to Live Properly and Became an Omega

Introduction to the Work: Yang Jae-gu, the loyal dog of Han Seong-cheol of the Daeyoung Group. After a lifetime of toiling, he finally thought he was free... "Thanks for your hard work. Jae-gu, you were a stupid but diligent son of a bitch. Farewell." He was cruelly abandoned in scorching flames. Along with Park Gwang-cheol, his cherished younger brother and another heir to the Daeyoung Group. If only I could live just one more time... I would live properly for you, not Han Seong-cheol. The moment his vision turned crimson with regret. "Why is Jae-gu hyung here?" Eighteen years old, he became high school student Yang Jae-gu! There is only one goal in this life. To dedicate the Dae...