Lin Dong is a smart person who is kind to who he sees as friends. However he is ruthless towards the ones he sees as enemies. He is not afraid to take risks and challenge strong opponents if they did him wrong. Early in the series he was unskilled and was bullied a lot by Lin Shan. However he was diligent in his training and didn't lose faith when encountering a setback. He challenged Lin Shan multiple times just to see his progress.