There are always people in this world who are born to be petrels that cross the ocean, and there are always people who are destined to be mountain sparrows in their nests. However, when they were still cubs, they were raised together.
When one day, the mountain sparrow with heather gray wings secretly fell in love with the full-winged little petrel, this is how the story began.
Ai Cha spent a young girl's youth silently pursuing that boy like a petrel. In the end, she finally transformed from a mountain sparrow into a petrel. She had the power to fly beside him. When she finally abandoned her inferior self and was qualified to stand beside him...
The series of first love that ends in vain - a little thing called secret love