Ask for the title of a romance novel I've read before

He had read a book a long time ago. The main character was an assassin. He was very young and had a baby face. He had run into the female character on a mission. The female character seemed to be a teacher or something. The male protagonist's organization seemed to be under the orders of some madam. The person that the male protagonist wanted to kill this time seemed to be related to the female protagonist. It was because the male protagonist had gone overseas after completing his mission. He seemed to be in England and did not dare to face the female protagonist. In the end, the male protagonist's partner asked the female protagonist to go to England to look for the male protagonist. The last scene was the male protagonist lying on the grass in a park and sunbathing. Then the female protagonist appeared... Then, the people in the park saw the female protagonist tugging at the male protagonist's ear and preaching. Who can tell me the title of the book?
I'm looking for a romance novel, a modern one, one from Taiwan, one with ten chapters. It definitely wouldn't be a foreign work, nor would it be a novel with many chapters.
It's a romance novel from Taiwan. It's about ten chapters. I'm sure the male and female leads are both Asian, so I don't recommend foreigners.

Answer 1

According to the information provided, the title of the romance novel that he had read before might be "Silent Flute". This was a very famous romance novel about the love story between the male lead He Yichen and the female lead Zhao Mosheng. The novel's plot was full of twists and turns, and it was deeply loved by readers.