Mistaking My Sister-In-Law for My Wife After Getting Drunk!

On the night of his marriage proposal, Xu Yang was dumped by his ex-girlfriend. Feeling heavy-hearted, he went to a bar to drown his sorrows. He didn't remember much about what happened that night, but he woke up with a stunning beauty lying next to him. At first glance, she looked somewhat familiar. Wasn't she his ex-girlfriend's sister? And it seemed like she was about to wake up! What should he do? He's anxiously waiting...