We’re Definitely Not Dating!

A brief summary: The main character (MC) and the love interest (ML) initially have a one-night stand, which evolves into a casual sexual relationship. Eventually, they develop romantic feelings for each other. The standout character for me is MC's father, who尽管起初难以接受儿子的性取向，但他深爱着儿子。在商业交易中，他对ML的第一印象不佳。当得知儿子与ML的关系后，这位练过泰拳的父亲以其特有的方式表达了不满，让ML小小地"吃"了点苦头，这部分情节十分有趣。

Good original book. Finished it in just a few days. The middle drags a bit but it’s worth pushing through.

Little did he know that it was already the year that followed which was the busiest day of his job each year; the day in which the new year arrives.