You are my tailor-made miracle
There is no Mary Sue here. The male protagonist was a little introverted before. The female protagonist used to be very much like that kind of little girl. She would act coquettishly and ask for help, but later she would grow up and protect the people who had protected her. This novel has a slight redemptive aspect, but the focus is not only on the love of the protagonist, but also on other supporting characters. It is about life. It can be said that life has tortured me thousands of times, and I have to move forward bravely. No matter what, can I still let go of your hand?
To clear things up, one of the supporting characters has a couple of hints about the emotional line of Lily (it has nothing to do with the heroine) and it won't affect the viewing unless you really, really, really, really hate it and can't see it at all.
Intention: Come on, don't be discouraged