Light Yagami (Y/n) has told many lies in his life. But perhaps the biggest was the lie he told even himself: he’d erased all his memories of the Death Note, effectively killing Kira at least for now and proving even to himself that he’s innocent. That’s his biggest lie… right? In which canon remains the same up to this point, but Light (you) is an omega and goes into heat after losing his memories and being stuck in the cell.