Secret Love is a solitary inner monologue and pantomime.
Only Cicada Ming knows whether Cheng Yi's secret is known to Qi Lin.
The warm summer sun shines on Cheng Yi's notebook and also on Cheng Yi's heart. The wind blows on Cheng Yi's cheek and the words in the notebook. The warm sun knows the secret in Cheng Yi's heart, and the wind also knows Cheng Yi's secret, but Qi Lin doesn't know it.
Concept: Secret love in youth campus