A rebellious but brilliant teacher is hired to lead a top-tier class at a reforming high school. Despite initial clashes with students and faculty, his unconventional teaching style slowly wins over the troubled class, sparking change in both the school and their lives.

Yinsha is a pure and beautiful girl raised by her grandmother in a coastal fishing village. She loves the sea and her hometown’s islands, and her love, Dalong, is the village's best fisherman.