Because of one night stand everything will change. ***** Maria Isabella Dimasali o mas kilala sa palayaw na Mayang ay isang babaeng probinsyana na naghahangad na mabigyan ng maginhawang buhay ang pamilya nya sa probinsya. At sa pag pasok nya sa isang kompanya ay nakilala nya si Denrick Moncuedo na syang magiging boss nya. He is called as a dragon in disguise. Some even named him as the demon in a corporate suit. But he doesn't care. Wala syang pakialam sa lahat ng bagay na nasa kasalukuyan nya dahil nandun pa rin sya sa kanyang nakaraan. Oo wala syang pakialam sa paligid nya but not until he met her. She's just his secretary but one day he woke up being a daddy of her child. Madami silang pinagdaanang pagsubok pero kaya kaya nilang malampasan yun? Will they end up together or they will choose to have a separate path?