A BL fiction about how a boy entered the imperial harem to replace his sister and end up having the Emperor fall for him

Shen Wei is a normal university professor. Zhao Yun Lan is a detective. Both seem to have pretty normal jobs. But nothing is as it seems. Their lives are going great, but one day Zhao Yun Lan and Shen Wei cross paths. What will happen? [ This story is made for fun, i will listen to your suggestions. I will change some bits from the novel/drama. This is based on my weird fantasy. Hope you enjoy ! ] This story is male x male, if you don't like lgbt+ themes. Please click away. Pairing : Shen Wei x Zhao Yun Lan Drama : Guardian Highest rank : #1 in Canon