From Daycomics:
We often follow stories of a man at the very top, surrounded by girls. But what happens when we follow the man behind him, planning to take it all away? A drama of betrayal and conquest, what's his is mine now.
Original Webtoon:
R19: Toptoon, Onestory, Nate
R17: Toptoon, Onestory, Nate
Official Translations:
English (DAYcomics, Toomics), T.Chinese