[Double cleanliness + two-way secret love + reunion after a long separation + two stubborn types]
In Yu Su's view, secret love is:
It was just a very ordinary little thing at first, but just because I like you, it all became so deliberate.
According to Jiang Ju, secret love is:
There is an unbridgeable gap between them. They want to get closer, but are afraid of being too close, so they are often close and sometimes far away, worrying about gains and losses.