It's just a past secret love.
I don't like the omnipotent heroine, and I don't like Mary Sue Tom Sue. Maybe in your opinion, the heroine in this article may be a bit stupid and a bit cowardly, but to me, she is another self, hidden under the sunny and warm smile that seems heartless and always confident and strong, another self that is sensitive, timid, insecure and can cry. Of course, this is also a true portrayal of the ignorant and exciting mood of adolescence.
Conception: