Xiao Yu, who is forced by his girlfriend to marry a same-sex person and is the heir to the Xiao Group, the richest man in M city, and Shen Cheng, the youngest professor in the history of dual degree at Oxford University in the UK who is willing to marry a same-sex person. The absurd marriage begins, the constant running-in in life, the complicated feelings, and the contract deadline is approaching. Will the two really be separated? Shen Cheng faced the empty room and said to himself: Even though I know it's just a transactional marriage, I still want to stay by your side, one more day, one more day...