I don't know as I haven't read it. But usually in a love story, there are two main characters, perhaps a man and a woman. Maybe one of them is Mr Sunshine.
Well, without having read 'Mr Sunshine Love Story', it's hard to be precise. However, love stories often involve a journey of emotions. There could be a beautiful encounter between the characters at the beginning. As the story unfolds, they might experience moments of joy, sorrow, and jealousy. Their love could be put to the test by external factors like a rival in love or internal factors such as fear of commitment.
Definitely not. Mr Sunshine is purely fictional. It takes inspiration from various sources but doesn't draw directly from any real-life events or people.