Big Sister VS Big Brother
Dai ca tuoi yeu

Suri is a strong, high-achieving student admired by her classmates, but she struggles to smile normally around her longtime crush, Jae-Sung. Along with her friends Eun-Bi and Ji-Sul, she feels ready to take on anything—until a handsome boy with no manners enters her life and complicates things. Meanwhile, Suri’s brother, the top fighter in his grade, faces trouble when a transfer student defeats him. The transfer student fears only one person: his older brother, the boy Suri met earlier.